Method and device in ue and base station used for wireless communication

ABSTRACT

A method and a device in a User Equipment (UE) and a base station for wireless communications are disclosed by the present disclosure. A first node receives T first-type radio signals; performs T access detections respectively on T sub-bands and transmits T second-type radio signals respectively in T time-frequency resource blocks; and performs Q energy detection(s) respectively in Q time sub-pool(s) on a first sub-band, through which Q detection value(s) is(are) obtained. The T sub-bands each comprise at least one same frequency point, or the T sub-bands belong to a same carrier; at least one of the T sub-bands is different from the first sub-band; the selection of the reference time-frequency resource block is related to at least one between the first sub-band and the reference sub-band; the first node is a base station, or the first node is a UE.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of the U.S. patent application Ser.No. 17/016,401, filed on Sep. 10, 2020, which is a continuation ofInternational Application No. PCT/CN2018/088675, filed May 28, 2018, thefull disclosure of which is incorporated herein by reference.

BACKGROUND Technical Field

The present disclosure relates to transmission methods and devices inwireless communication systems, and in particular to a communicationmethod and device that support data transmission on Unlicensed Spectrum.

Related Art

In a traditional 3^(rd) Generation Partner Project (3GPP) Long-termEvolution (LTE) system, data transmission only occurs on LicensedSpectrum. However, as traffic flow began to skyrocket, particularly insome urban areas, the Licensed Spectrum may hardly meet growing demandsfor traffic, therefore, in Release 13 and Release 14 communications onUnlicensed Spectrum is introduced into a cellular system and used fordownlink and uplink data transmissions. To ensure compatibility withother access technologies on Unlicensed Spectrum, the technique ofListen Before Talk (LBT) is adopted by Licensed Assisted Access (LAA) soas to prevent interference caused by multiple transmitters occupying asame frequency resource at the same time.

In the Cat 4 LBT (refer to 3GPP TR36.889 for the meaning of Cat 4 LBT)process of LTE, a transmitter (i.e., a base station or a User Equipment)experiences backoff in a certain defer duration, in which the backofftime is calculated based on a measurement unit of Clear ChannelAssessment (CCA) slot duration, and the number of slot durations of thebackoff is obtained by random selection of the transmitter within acontention window size (CWS). For a downlink (DL) transmission, the CWSis adjusted according to a Hybrid Automatic Repeat Request (HARQ)feedback corresponding to data comprised in a reference sub-framepreviously transmitted on the Unlicensed Spectrum. For an uplink (UL)transmission, the CWS is adjusted according to whether data comprised bya reference sub-frame previously transmitted on the Unlicensed Spectrumcomprises new data. In LTE, a bandwidth of LBT is the same as that of acorresponding carrier.

Considering that the receiving bandwidth at the terminal may berestricted, a concept of Bandwidth Part (BWP) is introduced in 5G NR(New Radio Access Technology) Phase 1 system, with a view to supportingmultiple subcarrier spacings (SCSs) under a single system bandwidth.Specifically, when a cell has a Component Carrier (CC) with largebandwidth, a base station is able to split the large CC into a few BWPsto suit UEs with different receiving bandwidths and transmittingbandwidth capabilities, the size of BWP can be flexibly configured. Whena UE with smaller bandwidth capability is in communication with a cell,the UE is only qualified for either downlink reception or uplinktransmission on a smaller BWP; when a UE with larger bandwidthcapability is in communication with a cell, the UE is able to performdownlink reception or uplink transmission on a larger BWP. Currently,discussions about sub-band LBT in 5G NR are still under way, since thevariety range of NR system bandwidth is wider than that of LTE systembandwidth, traditional LAA techniques shall be reconsidered, such as theLBT scheme.

SUMMARY

Inventors find through researches that how to enhance the chance ofchannel access on Unlicensed Spectrum in an NR system to achievemultiple transmitting nodes' sharing of Unlicensed Spectrum resources ina more effective manner is a key issue that remains to be handled.

To address the above problem, the present disclosure provides asolution. It should be noted that the embodiments of the presentdisclosure and the characteristics in the embodiments may be mutuallycombined if no conflict is incurred.

The present disclosure provides a method in a first node for wirelesscommunications, comprising:

receiving T first-type radio signals, T being a positive integer greaterthan 1; and performing T access detections respectively on T sub-bands,and transmitting T second-type radio signals respectively in Ttime-frequency resource blocks; and

performing Q energy detection(s) respectively in Q time sub-pool(s) on afirst sub-band, through which Q detection value(s) is(are) obtained, Qbeing a positive integer;

herein, the T sub-bands comprise at least one same frequency point, orthe T sub-bands belong to a same carrier; at least one sub-band of the Tsub-bands is different from the first sub-band; the T first-type radiosignals are respectively associated with the T second-type radiosignals; a reference first-type radio signal is one of the T first-typeradio signals, the Q is related only to the reference first-type radiosignal of the T first-type radio signals; the T access detections arerespectively used for determining transmissions of the T second-typeradio signals; a reference sub-band is one of the T sub-bandscorresponding to the reference first-type radio signal, and a referencetime-frequency resource block is one of the T time-frequency resourceblocks corresponding to the reference first-type radio signal; selectionof the reference time-frequency resource block is related to at leastone of the first sub-band or the reference sub-band; the first node is abase station, or the first node is a User Equipment (UE).

In one embodiment, a problem to be solved in the present disclosure isthat when a CC bandwidth or a BWP bandwidth is larger, and a bandwidthof LBT is the same as the CC/BWP bandwidth, the larger LBT bandwidthwill lead to lower chance of channel access. To enhance the chance ofaccess to channel and to achieve multiple transmitting nodes' sharing ofUnlicensed Spectrum resources more effectively, a narrowband LBT (thatis, having a bandwidth smaller than CC or BWP, or, an LBT bandwidthsmaller than a transmission bandwidth of a radio signal), whosebandwidth shall be no smaller than specified by regulatory requirements(for example, a bandwidth of 20 MHz with a carrier frequency of 5 GHz,or a bandwidth of 1 GHz with a carrier frequency of 60 GHz) can beemployed to enhance the chance of channel access, therefore, wirelesstransmissions under narrowband LBT is a key issue to be solved.

In one embodiment, a problem to be solved in the present disclosure isthat when employing the technique of narrowband LBT, the LBT bandwidthfor a transmitting node may vary at different times, and a referencesubframe needs to be determined in calculating CWS for the present LBT,and the determination of the reference subframe has to reflect theinterference on the present LBT bandwidth, thus posing anotherrequirement on the CWS adjustment. The above proposal manages to solvethe problem by taking into account the present LBT bandwidth and/or aprevious LBT bandwidth when determining a reference subframe, therebydecreasing the chance of multiple transmitters' occupying the samefrequency resources, hence a reduction in co-channel interference causedtherefrom.

In one embodiment, the essence of the above method lies in that the Taccess detections are T LBTs respectively, and the T sub-bands arebandwidths of the T LBTs respectively. The first sub-band is a bandwidthof the current LBT, and the reference time-frequency resource block is areference subframe, the Q being related to CWS, and the selection of areference subframe is related to a bandwidth of the current LBT and/orbandwidths of T LBTs. An advantage of employing the above method is toenable the CWS to reflect the interference situation on the current LTbandwidth more accurately, thereby configuring an optimal backoffcontention window for the Q energy detection(s).

According to one aspect of the present disclosure, the above method ischaracterized in that a bandwidth of the reference sub-band is equal toa bandwidth of a carrier to which the reference sub-band belongs.

In one embodiment, the essence of the above method lies in that areference sub-band is wideband, so LBT corresponding to the referencesub-band is wideband LBT, which means that the present frequency bandfor LBT will never exceed the coverage of the reference sub-band. Anadvantage of the above method is that no matter what size the presentLBT bandwidth is, selecting time-frequency resources in uplink/downlinkburst corresponding to the wideband LBT as a reference subframe helpsreflect how exactly the current LBT is interfered, thereby configuringan optimal backoff contention window for the Q energy detection(s).

According to one aspect of the present disclosure, the above method ischaracterized in that each of t time-frequency resource block(s) out ofthe T time-frequency resource blocks comprises the first sub-band, tbeing a positive integer no greater than the T; the referencetime-frequency resource block is one of the t time-frequency resourceblock(s).

In one embodiment, the essence of the above method lies in that eachfrequency band(s) of t LBT(s) respectively corresponding to the ttime-frequency resource block(s) comprises a frequency band of thepresent LBT, and a reference subframe corresponds to one of the ttime-frequency resource block(s), for instance, a time-frequencyresource block nearest to the present LBT chronologically. An advantageof the above method is that the reference subframe can reflect theinterference situation in the present LBT, thereby configuring anoptimal backoff contention window for the Q energy detection(s).

According to one aspect of the present disclosure, the above method ischaracterized in that each of t time-frequency resource block(s) out ofthe T time-frequency resource blocks comprises the first sub-band, tbeing a positive integer no greater than the T; frequency-domainresources respectively comprised by t1 time-frequency resource block(s)of the t time-frequency resource block(s) are the same asfrequency-domain resources comprised by the first sub-band, wherein t1is a positive integer no greater than the t, and the referencetime-frequency resource block is one of the t1 time-frequency resourceblock(s); or, frequency-domain resources comprised by any of the ttime-frequency resource block(s) are not completely the same asfrequency-domain resources comprised by the first sub-band, and thereference time-frequency resource block is one of the t time-frequencyresource block(s).

In one embodiment, the essence of the above method lies in that iffrequency band(s) of t1 LBT(s) respectively corresponding to the t1time-frequency resource block(s) of the t time-frequency resourceblock(s) is(are) the same as a frequency band of the present LBT, areference subframe corresponds to one of the t1 time-frequency resourceblock(s), for instance, a time-frequency resource block nearest to thepresent LBT chronologically; otherwise, if band range of each LBT of tLBT(s) respectively corresponding to the t time-frequency resourceblock(s) is larger than that of the present LBT, a reference subframecorresponds to one of the t time-frequency resource block(s), forinstance, a time-frequency resource block nearest to the present LBTchronologically. An advantage of the above method is that byprioritizing the reference subframe as a correspondence totime-frequency resources corresponding to an LBT having the samefrequency band as the current LBT, the interference situation in thepresent LBT can be reflected more clearly, thereby configuring anoptimal backoff contention window for the Q energy detection(s).

According to one aspect of the present disclosure, the above method ischaracterized in that the first node is a base station, and the Tfirst-type radio signals respectively indicate whether the T second-typeradio signals are correctly received; a reference second-type radiosignal is one of the T second-type radio signals associated with thereference first-type radio signal, and the reference second-type radiosignal comprises W sub-signal(s), W being a positive integer; whetherthe W sub-signal(s) is(are) correctly received is used for determiningthe Q.

According to one aspect of the present disclosure, the above method ischaracterized in that the first node is a UE, and the T first-type radiosignals respectively comprise scheduling information of the Tsecond-type radio signals; a reference second-type radio signal is oneof the T second-type radio signals associated with the referencefirst-type radio signal, and the reference second-type radio signalcomprises V sub-signal(s), V being a positive integer; the referencefirst-type radio signal is used for respectively determining whether theV sub-signal(s) comprises(comprise) new data; whether the Vsub-signal(s) comprises(comprise) new data is used for determining theQ.

According to one aspect of the present disclosure, the above method ischaracterized in that the reference first-type radio signal is used fordetermining K candidate integer(s), Q1 being one of the K candidateinteger(s); each of Q1 detection value(s) out of the Q detectionvalue(s) is lower than a first threshold, K being a positive integer,and the Q1 being a positive integer no greater than the Q.

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

transmitting a third-type radio signal in the first sub-band;

herein, a start time of time-domain resources occupied by the third-typeradio signal is no earlier than an end time of the Q time sub-pool(s).

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

operating first information;

herein, the first information comprises scheduling information of thethird-type radio signal; the operating is receiving, and the first nodeis a UE; or the operating is transmitting, and the first node is a basestation.

The present disclosure provides a device in a first node for wirelesscommunications, comprising:

a first transceiver, receiving T first-type radio signals, T being apositive integer greater than 1; and performing T access detectionsrespectively on T sub-bands, and transmitting T second-type radiosignals respectively in T time-frequency resource blocks; and

a first receiver, performing Q energy detection(s) respectively in Qtime sub-pool(s) on a first sub-band, through which Q detection value(s)is(are) obtained, Q being a positive integer;

herein, the T sub-bands comprise at least one same frequency point, orthe T sub-bands belong to a same carrier; at least one sub-band of the Tsub-bands is different from the first sub-band; the T first-type radiosignals are respectively associated with the T second-type radiosignals; a reference first-type radio signal is one of the T first-typeradio signals, the Q is related only to the reference first-type radiosignal of the T first-type radio signals; the T access detections arerespectively used for determining transmissions of the T second-typeradio signals; a reference sub-band is one of the T sub-bandscorresponding to the reference first-type radio signal, and a referencetime-frequency resource block is one of the T time-frequency resourceblocks corresponding to the reference first-type radio signal; selectionof the reference time-frequency resource block is related to at leastone of the first sub-band or the reference sub-band; the first node is abase station, or the first node is a User Equipment (UE).

In one embodiment, the above device in the first node is characterizedin that a bandwidth of the reference sub-band is equal to a bandwidth ofa carrier to which the reference sub-band belongs.

In one embodiment, the above device in the first node is characterizedin that each of t time-frequency resource block(s) out of the Ttime-frequency resource blocks comprises the first sub-band, t being apositive integer no greater than the T; the reference time-frequencyresource block is one of the t time-frequency resource block(s).

In one embodiment, the above device in the first node is characterizedin that each of t time-frequency resource block(s) out of the Ttime-frequency resource blocks comprises the first sub-band, t being apositive integer no greater than the T; frequency-domain resourcesrespectively comprised by t1 time-frequency resource block(s) of the ttime-frequency resource block(s) are the same as frequency-domainresources comprised by the first sub-band, wherein t1 is a positiveinteger no greater than the t, and the reference time-frequency resourceblock is one of the t1 time-frequency resource block(s); or,frequency-domain resources comprised by any of the t time-frequencyresource block(s) are not completely the same as frequency-domainresources comprised by the first sub-band, and the referencetime-frequency resource block is one of the t time-frequency resourceblock(s).

In one embodiment, the above device in the first node is characterizedin that the first node is a base station, and the T first-type radiosignals respectively indicate whether the T second-type radio signalsare correctly received; a reference second-type radio signal is one ofthe T second-type radio signals associated with the reference first-typeradio signal, and the reference second-type radio signal comprises Wsub-signal(s), W being a positive integer; whether the W sub-signal(s)is(are) correctly received is used for determining the Q.

In one embodiment, the above device in the first node is characterizedin that the first node is a UE, and the T first-type radio signalsrespectively comprise scheduling information of the T second-type radiosignals; a reference second-type radio signal is one of the Tsecond-type radio signals associated with the reference first-type radiosignal, and the reference second-type radio signal comprises Vsub-signal(s), V being a positive integer; the reference first-typeradio signal is used for respectively determining whether the Vsub-signal(s) comprises(comprise) new data; whether the V sub-signal(s)comprises(comprise) new data is used for determining the Q.

In one embodiment, the above device in the first node is characterizedin that the reference first-type radio signal is used for determining Kcandidate integer(s), Q1 being one of the K candidate integer(s); eachof Q1 detection value(s) out of the Q detection value(s) is lower than afirst threshold, K being a positive integer, and the Q1 being a positiveinteger no greater than the Q.

In one embodiment, the above device in the first node is characterizedin comprising:

a first transmitter, transmitting a third-type radio signal in the firstsub-band;

herein, a start time of time-domain resources occupied by the third-typeradio signal is no earlier than an end time of the Q time sub-pool(s).

In one embodiment, the above device in the first node is characterizedin that the first transceiver also operates first information; herein,the first information comprises scheduling information of the third-typeradio signal; the operating is receiving, and the first node is a UE; orthe operating is transmitting, and the first node is a base station.

In one embodiment, the present disclosure has the following advantagesover the prior art:

When a bandwidth of CC or BWP is larger and is the same as that of LBT,the larger LBT bandwidth will result in lower chance of channel access.To enhance the chance of channel access, which further contributes tothe sharing of Unlicensed Spectrum resources by multiple transmittingnodes, when the required bandwidth is no smaller than that specified byregulations, such as 20 MHz with a carrier frequency of 5 GHz and 1 GHzwith a carrier frequency of 60 GHz, a narrowband LBT (that is, having abandwidth smaller than CC or BWP, or a LBT bandwidth smaller than atransmission bandwidth of a radio signal) is allowed to be applied toenhance the chance of access to the channel.

In the application of narrowband LBT technique, a transmitting node mayhave different LBT bandwidths as time changes. A reference subframeneeds to be determined before the calculation of CWS for the currentLBT. It is proposed in the present disclosure that the current LBTbandwidth and/or a previous LBT bandwidth should be considered for thedetermination of the reference subframe, so as to ensure that thereference subframe precisely reflects the interference situation on thecurrent LBT bandwidth, and that a most suitable backoff contentionwindow can be configured, thus reducing the chance of multipletransmitters' occupying the same frequency resources simultaneously andco-channel interference that may arise therefrom.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present disclosure willbecome more apparent from the detailed description of non-restrictiveembodiments taken in conjunction with the following drawings:

FIG. 1 illustrates a flowchart of T first-type radio signals, T accessdetections, T second-type radio signals and Q energy detection(s)according to one embodiment of the present disclosure.

FIG. 2 illustrates a schematic diagram of a network architectureaccording to one embodiment of the present disclosure.

FIG. 3 illustrates a schematic diagram of a radio protocol architectureof a user plane and a control plane according to one embodiment of thepresent disclosure.

FIG. 4 illustrates a schematic diagram of a New Radio (NR) node and a UEaccording to one embodiment of the present disclosure.

FIG. 5 illustrates a flowchart of wireless transmission according to oneembodiment of the present disclosure.

FIG. 6 illustrates a flowchart of wireless transmission according toanother embodiment of the present disclosure.

FIG. 7 illustrates a schematic diagram of selection of a referencetime-frequency resource block according to one embodiment of the presentdisclosure.

FIG. 8 illustrates a schematic diagram of selection of a referencetime-frequency resource block according to one embodiment of the presentdisclosure.

FIG. 9 illustrates a schematic diagram of selection of a referencetime-frequency resource block according to one embodiment of the presentdisclosure.

FIG. 10A-FIG. 10B respectively illustrate a schematic diagram ofrelations among J given first radio signal(s), J given second radiosignal(s) and Q according to one embodiment of the present disclosure.

FIG. 11A-FIG. 11D respectively illustrate a schematic diagram ofrelations among J given third radio signal(s), J given fourth radiosignal(s) and Q according to another embodiment of the presentdisclosure.

FIG. 12 illustrates a schematic diagram of a reference first-type radiosignal being used for determining Q according to one embodiment of thepresent disclosure.

FIG. 13 illustrates a schematic diagram of J given fifth radio signal(s)being used for determining K candidate integer(s) according to oneembodiment of the present disclosure.

FIG. 14 illustrates a schematic diagram of J given sixth radio signal(s)being used for determining K candidate integer(s) according to anotherembodiment of the present disclosure.

FIG. 15 illustrates a schematic diagram of a given access detectionbeing used for determining whether wireless transmission is performedwithin given time-domain resources in a given sub-band according to oneembodiment of the present disclosure.

FIG. 16 illustrates a schematic diagram of a given access detectionbeing used for determining whether wireless transmission is performedwithin given time-domain resources in a given sub-band according toanother embodiment of the present disclosure.

FIG. 17 illustrates a structure block diagram of a processing device ina first node according to one embodiment of the present disclosure.

DESCRIPTION OF THE EMBODIMENTS

The technical scheme of the present disclosure is described below infurther details in conjunction with the drawings. It should be notedthat the embodiments of the present disclosure and the characteristicsof the embodiments may be arbitrarily combined if no conflict is caused.

Embodiment 1

Embodiment 1 illustrates a flowchart of T first-type radio signals, Taccess detections, T second-type radio signals and Q energydetection(s), as shown in FIG. 1 .

In Embodiment 1, the first node in the present disclosure receives Tfirst-type radio signals, T being a positive integer greater than 1;performs T access detections respectively on T sub-bands, and transmitsT second-type radio signals respectively in T time-frequency resourceblocks; and performs Q energy detection(s) respectively in Q timesub-pool(s) on a first sub-band, through which Q detection value(s)is(are) obtained, Q being a positive integer; herein, the T sub-bandscomprise at least one same frequency point, or the T sub-bands belong toa same carrier; at least one sub-band of the T sub-bands is differentfrom the first sub-band; the T first-type radio signals are respectivelyassociated with the T second-type radio signals; a reference first-typeradio signal is one of the T first-type radio signals, the Q is relatedonly to the reference first-type radio signal of the T first-type radiosignals; the T access detections are respectively used for determiningtransmissions of the T second-type radio signals; a reference sub-bandis one of the T sub-bands corresponding to the reference first-typeradio signal, and a reference time-frequency resource block is one ofthe T time-frequency resource blocks corresponding to the referencefirst-type radio signal; selection of the reference time-frequencyresource block is related to at least one of the first sub-band or thereference sub-band; the first node is a base station, or the first nodeis a UE.

In one embodiment, any first-type radio signal of the T first-type radiosignals comprises control information.

In one embodiment, the T first-type radio signals are respectivelytransmitted in the T sub-bands.

In one embodiment, any first-type radio signal of the T first-type radiosignals is transmitted in one of the T sub-bands.

In one embodiment, at least one first-type radio signal of the Tfirst-type radio signals is transmitted in one of the T sub-bands.

In one embodiment, at least one first-type radio signal of the Tfirst-type radio signals is transmitted in a frequency band other thanthe T sub-bands.

In one embodiment, the T first-type radio signals are transmitted in (a)frequency band(s) other than the T sub-bands.

In one embodiment, the T first-type radio signals are transmitted in acarrier to which the T sub-bands belong.

In one embodiment, the T first-type radio signals are transmitted in acarrier different from a carrier to which the T sub-bands belong.

In one embodiment, the T first-type radio signals are transmitted in afrequency band deployed on Licensed Spectrum.

In one embodiment, the T first-type radio signals are transmitted in afrequency band deployed on Unlicensed Spectrum.

In one embodiment, any second-type radio signal of the T second-typeradio signals comprises data.

In one embodiment, any second-type radio signal of the T second-typeradio signals comprises a reference signal.

In one embodiment, any second-type radio signal of the T second-typeradio signals comprises data and a reference signal.

In one embodiment, the T second-type radio signals are composed of dataand reference signals.

In one embodiment, the T second-type radio signals are respectivelytransmitted in the T sub-bands.

In one embodiment, the T second-type radio signals are transmitted in afrequency band deployed on Unlicensed Spectrum.

In one embodiment, time-domain resources respectively occupied by the Tsecond-type radio signals are mutually orthogonal (that is,non-overlapping).

In one embodiment, time-domain resources respectively occupied by atleast two of the T second-type radio signals are mutually orthogonal(that is, non-overlapping).

In one embodiment, there does not exist any multicarrier symbolbelonging to any two second-type radio signals of the T second-typeradio signals.

In one embodiment, there does not exist any multicarrier symbolbelonging to at least two second-type radio signals of the T second-typeradio signals.

In one embodiment, the multicarrier symbol is an Orthogonal FrequencyDivision Multiplexing (OFDM) symbol.

In one embodiment, the multicarrier symbol is a Single Carrier-FrequencyDivision Multiple Access (SC-FDMA) symbol.

In one embodiment, the multicarrier symbol is a Discrete FourierTransform Spread OFDM (DFT-S-OFDM) symbol.

In one embodiment, the multicarrier symbol is a Filter Bank MultiCarrier (FBMC) symbol.

In one embodiment, the multicarrier symbol comprises Cyclic Prefix (CP).

In one embodiment, the T sub-bands are deployed on Unlicensed Spectrum.

In one embodiment, the T sub-bands are T Bandwidth Parts (BWPs)respectively.

In one embodiment, each of the T sub-bands comprises a positive integernumber of Physical Resource Block(s) (PRB) in frequency domain.

In one embodiment, each of the T sub-bands comprises a positive integernumber of consecutive PRBs in frequency domain.

In one embodiment, each of the T sub-bands comprises a positive integernumber of Resource Block(s) (RB) in frequency domain.

In one embodiment, each of the T sub-bands comprises a positive integernumber of consecutive RBs in frequency domain.

In one embodiment, each of the T sub-bands comprises a positive integernumber of consecutive subcarriers in frequency domain.

In one embodiment, the T sub-bands comprise at least one same frequencypoint.

In one subembodiment of the above embodiment, the T sub-bands compriseat least one same subcarrier.

In one subembodiment of the above embodiment, any two of the T sub-bandsare non-orthogonal (i.e., overlapping).

In one subembodiment of the above embodiment, the T sub-bands compriseat least a same frequency-domain resource.

In one embodiment, the T sub-bands belong to a same carrier.

In one subembodiment of the above embodiment, at least two of the Tsub-bands are orthogonal (i.e., non-overlapping).

In one subembodiment of the above embodiment, at least two of the Tsub-bands are non-orthogonal (i.e., overlapping).

In one subembodiment of the above embodiment, any two of the T sub-bandsare orthogonal (i.e., non-overlapping).

In one subembodiment of the above embodiment, any two of the T sub-bandsbands are non-orthogonal (i.e., overlapping).

In one subembodiment of the above embodiment, a bandwidth of any of theT sub-bands is equal to or smaller than a bandwidth of a carrier towhich the T sub-bands belong.

In one embodiment, a bandwidth of any of the T sub-bands is an integralmultiple of 20 MHz.

In one embodiment, any of the T sub-bands has a bandwidth of 20 MHz.

In one embodiment, any of the T sub-bands has a bandwidth of 1 GHz.

In one embodiment, any of the T sub-bands has a bandwidth of x1 MHz, x1being a positive integer.

In one embodiment, any of the T sub-bands has a bandwidth of x2 GHz, x2being a positive integer.

In one embodiment, the T access detections are respectively used fordetermining whether the T sub-bands are idle.

In one embodiment, the T access detections are respectively used fordetermining whether the T sub-bands can be used by the first node fortransmitting a radio signal.

In one embodiment, end times of the T access detections are respectivelyno later than start times of transmissions of the T second-type radiosignals.

In one embodiment, a given access detection is any access detection ofthe T access detections, a given sub-band is one of the T sub-bandscorresponding to the given access detection, and the given accessdetection comprises: performing a positive integer number of energydetection(s) respectively in a positive integer number of timesub-pool(s) on the given sub-band, through which a positive integernumber of detection value(s) is(are) obtained.

In one embodiment, a given access detection is any access detection ofthe T access detections, a given sub-band is one of the T sub-bandscorresponding to the given access detection, and the given accessdetection comprises: performing P energy detection(s) respectively in Ptime sub-pool(s) on the given sub-band, through which P detectionvalue(s) is(are) obtained.

In one embodiment, numbers of time sub-pools respectively comprised byany two of the T access detections may be or may not be the same.

In one embodiment, time-frequency resources respectively occupied by theT second-type radio signals belong to the T time-frequency resourceblocks respectively.

In one embodiment, any of the T time-frequency resource blocks comprisesat least one sub-frame in time domain.

In one embodiment, any of the T time-frequency resource blocks comprisesone sub-frame in time domain.

In one embodiment, any of the T time-frequency resource blocks comprisesat least one slot in time domain.

In one embodiment, any of the T time-frequency resource blocks comprisesone slot in time domain.

In one embodiment, any of the T time-frequency resource blocks comprisesa positive integer number of multicarrier symbol(s) in time domain.

In one embodiment, any of the T time-frequency resource blocks comprisesa positive integer number of consecutive multicarrier symbols in timedomain.

In one embodiment, any of the T time-frequency resource blocks is aconsecutive duration in time domain.

In one embodiment, any of the T time-frequency resource blocks isearlier than the Q time sub-pool(s) in time domain.

In one embodiment, a burst to which any of the T time-frequency resourceblocks belongs is earlier than the Q time sub-pool(s) in time domain.

In one embodiment, the T time-frequency resource blocks are mutuallyorthogonal (that is, non-overlapping) in time domain.

In one embodiment, the T time-frequency resource blocks belong to afirst time window in time domain.

In one subembodiment, the first time window comprises a positive integernumber of sub-frame(s).

In one subembodiment, the first time window comprises a positive integernumber of slot(s).

In one subembodiment, the first time window comprises a positive integernumber of consecutive multicarrier symbols.

In one subembodiment, the first time window is a consecutive duration.

In one subembodiment, duration time of the first time window ispre-defined.

In one subembodiment, duration time of the first time window isconfigurable.

In one subembodiment, duration time of the first time window isconfigured by a higher-layer signaling.

In one subembodiment, duration time of the first time window isconfigured by a physical-layer signaling.

In one embodiment, the T sub-bands respectively correspond to the Ttime-frequency resource blocks.

In one subembodiment, a given sub-band is any sub-band of the Tsub-bands, a given time-frequency resource block is one of the Ttime-frequency resource blocks corresponding to the given sub-band, andfrequency-domain resources comprised by the given sub-band are the sameas those comprised by the given time-frequency resource block.

In one embodiment, frequency-domain resources comprised by the referencesub-band are the same as frequency-domain resources comprised by thereference time-frequency resource block.

In one embodiment, the reference sub-band comprises the first sub-band.

In one subembodiment, frequency-domain resources comprised by thereference sub-band are the same as frequency-domain resources comprisedby the first sub-band.

In one subembodiment, frequency-domain resources comprised by the firstsub-band belong to the reference sub-band, and the reference sub-bandcomprises frequency-domain resources not belonging to the firstsub-band.

In one embodiment, the first sub-band is deployed on UnlicensedSpectrum.

In one embodiment, the first sub-band is a BWP.

In one embodiment, at least one of the T sub-bands comprises at least asame frequency point as the first sub-band.

In one subembodiment, at least one of the T sub-bands comprises at leasta same subcarrier as the first sub-band.

In one subembodiment, at least one of the T sub-bands is non-orthogonal(that is, partially or entirely overlapping) with the first sub-band.

In one embodiment, at least one of the T sub-bands comprises at least asame frequency-domain resource as the first sub-band.

In one embodiment, the T sub-bands and the first sub-band belong to asame carrier.

In one embodiment, at least one of the T sub-bands is non-orthogonal(that is, partially overlapping) with the first sub-band.

In one embodiment, at least one of the T sub-bands is non-orthogonal(that is, partially or entirely overlapping) with the first sub-band.

In one embodiment, at least one of the T sub-bands comprises the firstsub-band.

In one embodiment, a bandwidth of the first sub-band is smaller thanthat of a carrier to which the first sub-band belongs.

In one embodiment, a bandwidth of the first sub-band is as large as thatof a carrier to which the first sub-band belongs.

In one embodiment, a bandwidth of the first sub-band is an integralmultiple of 20 MHz.

In one embodiment, a bandwidth of the first sub-band is 20 MHz.

In one embodiment, a bandwidth of the first sub-band is 1 GHz.

In one embodiment, a bandwidth of the first sub-band is x3 MHz, x3 beinga positive integer.

In one embodiment, a bandwidth of the first sub-band is x4 GHz, x4 beinga positive integer.

In one embodiment, the Q energy detection(s) is(are) used fordetermining whether the first sub-band is idle.

In one embodiment, the Q energy detection(s) is(are) used fordetermining whether the first sub-band can be used by the first node fortransmitting a radio signal.

In one embodiment, the reference sub-band being one of the T sub-bandsthat corresponds to the reference first-type radio signal means that areference access detection is an access detection performed on thereference sub-band out of the T access detections, a referencesecond-type radio signal is one of the T second-type radio signalsassociated with the reference first-type radio signal, and the referenceaccess detection is used for determining a transmission of the referencesecond-type radio signal.

In one embodiment, the T sub-bands respectively correspond to the Tfirst-type radio signals.

In one subembodiment of the above embodiment, a given sub-band is one ofthe T sub-bands, and a given first-type radio signal is one of the Tfirst-type radio signals that corresponds to the given sub-band, thephrase that the given sub-band corresponds to the given first-type radiosignal means that a given access detection is an access detectionperformed on the given sub-band out of the T access detections, a givensecond-type radio signal is one of the T second-type radio signalsassociated with the given first-type radio signal, and the given accessdetection is used for determining a transmission of the givensecond-type radio signal.

In one embodiment, the reference time-frequency resource block being oneof the T time-frequency resource blocks that corresponds to thereference first-type radio signal means that a reference second-typeradio signal is one of the T second-type radio signals associated withthe reference first-type radio signal, and the reference time-frequencyresource block is a time-frequency resource block used for transmittingthe reference second-type radio signal out of the T time-frequencyresource blocks.

In one embodiment, the T time-frequency resource blocks respectivelycorrespond to the T first-type radio signals.

In one subembodiment of the above embodiment, a given time-frequencyresource block is one of the T time-frequency resource blocks, and agiven first-type radio signal is one of the T first-type radio signalsthat corresponds to the given time-frequency resource block, the phrasethat the given time-frequency resource block corresponds to the givenfirst-type radio signal means that a given second-type radio signal isone of the T second-type radio signals associated with the givenfirst-type radio signal, and the given time-frequency resource block isa time-frequency resource block used for transmitting the givensecond-type radio signal out of the T time-frequency resource blocks.

In one embodiment, the above method also comprises:

receiving S fourth-type radio signal(s), and transmitting S fifth-typeradio signal(s) in a reference time-frequency resource block;

herein, the S fourth-type radio signal(s) is(are) respectivelyassociated with the S fifth-type radio signal(s), S being a positiveinteger; the Q is related to the S fourth-type radio signal(s) and onlythe reference first-type radio signal of the T first-type radio signals.

In one embodiment, a reference access detection is an access detectionperformed on the reference sub-band out of the T access detections, anda reference second-type radio signal is one of the T second-type radiosignals associated with the reference first-type radio signal, thereference access detection being used for determining a transmission ofthe reference second-type radio signal as well as transmission(s) of theS fifth-type radio signal(s).

In one subembodiment of the above embodiment, an end time of thereference access detection is no later than a start time of atransmission of the reference second-type radio signal or start time(s)of respective transmission(s) of the S fifth-type radio signal(s).

In one embodiment, time-frequency resources respectively occupied by theS fifth-type radio signals belong to the reference time-frequencyresource block.

In one embodiment, any of the S fourth-type radio signal(s) comprisescontrol information.

In one embodiment, each of the S fourth-type radio signal(s) istransmitted in the reference sub-band.

In one embodiment, at least one of the S fourth-type radio signal(s) istransmitted in the reference sub-band.

In one embodiment, at least one of the S fourth-type radio signal(s) istransmitted in a frequency band other than the reference sub-band.

In one embodiment, each of the S fourth-type radio signal(s) istransmitted in a frequency band other than the reference sub-band.

In one embodiment, each of the S fourth-type radio signal(s) istransmitted in a carrier to which the reference sub-band belongs.

In one embodiment, the S fourth-type radio signal(s) is(are) transmittedin a carrier different from a carrier to which the reference sub-bandbelongs.

In one embodiment, each of the S fourth-type radio signal(s) istransmitted in a frequency band deployed on Licensed Spectrum.

In one embodiment, each of the S fourth-type radio signal(s) istransmitted in a frequency band deployed on Unlicensed Spectrum.

In one embodiment, any of the S fifth-type radio signal(s) comprisesdata.

In one embodiment, any of the S fifth-type radio signal(s) comprises areference signal.

In one embodiment, any of the S fifth-type radio signal(s) compriseseither data or a reference signal.

In one embodiment, each of the S fifth-type radio signal(s) is composedof data and a reference signal.

In one embodiment, each of the S fifth-type radio signal(s) istransmitted in the reference sub-band.

In one embodiment, each of the S fifth-type radio signal(s) istransmitted in a frequency band deployed on Unlicensed Spectrum.

Embodiment 2

Embodiment 2 illustrates a schematic diagram of a network architecture,as shown in FIG. 2 .

Embodiment 2 illustrates a schematic diagram of a network architectureaccording to the present disclosure. FIG. 2 is a diagram illustrating anetwork architecture 200 of NR 5G, Long-Term Evolution (LTE) andLong-Term Evolution Advanced (LTE-A) systems. The NR 5G or LTE networkarchitecture 200 may be called an Evolved Packet System (EPS) 200 orother appropriate terms. The EPS 200 may comprise one or more UEs 201,an NG-RAN 202, an Evolved Packet Core/5G-Core Network (EPC/5G-CN) 210, aHome Subscriber Server (HSS) 220 and an Internet Service 230. The EPS200 may be interconnected with other access networks. For simpledescription, the entities/interfaces are not shown. As shown in FIG. 2 ,the EPS 200 provides packet switching services. Those skilled in the artwill readily understand that various concepts presented throughout thepresent disclosure can be extended to networks providing circuitswitching services or other cellular networks. The NG-RAN 202 comprisesan NR node B (gNB) 203 and other gNBs 204. The gNB 203 provides UE201-oriented user plane and control plane terminations. The gNB 203 maybe connected to other gNBs 204 via an Xn interface (for example,backhaul). The gNB 203 may be called a base station, a base transceiverstation, a radio base station, a radio transceiver, a transceiverfunction, a Base Service Set (BSS), an Extended Service Set (ESS), aTransmitter Receiver Point (TRP) or some other applicable terms. The gNB203 provides an access point of the EPC/5G-CN 210 for the UE 201.Examples of UE 201 include cellular phones, smart phones, SessionInitiation Protocol (SIP) phones, laptop computers, Personal DigitalAssistant (PDA), Satellite Radios, non-terrestrial base stationcommunications, Global Positioning Systems (GPSs), multimedia devices,video devices, digital audio players (for example, MP3 players),cameras, games consoles, unmanned aerial vehicles, air vehicles,narrow-band physical network equipment, machine-type communicationequipment, land vehicles, automobiles, wearable equipment, or any otherdevices having similar functions. Those skilled in the art also can callthe UE 201 a mobile station, a subscriber station, a mobile unit, asubscriber unit, a wireless unit, a remote unit, a mobile device, awireless device, a radio communication device, a remote device, a mobilesubscriber station, an access terminal, a mobile terminal, a wirelessterminal, a remote terminal, a handset, a user proxy, a mobile client, aclient, or some other appropriate terms. The gNB 203 is connected to theEPC/5G-CN 210 via an S1/NG interface. The EPC/5G-CN 210 comprises aMobility Management Entity (MME)/Authentication Management Field(AMF)/User Plane Function (UPF) 211, other MMEs/AMFs/UPFs 214, a ServiceGateway (S-GW) 212 and a Packet Date Network Gateway (P-GW) 213. TheMME/AMF/UPF 211 is a control node for processing a signaling between theUE 201 and the EPC/5G-CN 210. Generally, the MME/AMF/UPF 211 providesbearer and connection management. All user Internet Protocol (IP)packets are transmitted through the S-GW 212. The S-GW 212 is connectedto the P-GW 213. The P-GW 213 provides UE IP address allocation andother functions. The P-GW 213 is connected to the Internet Service 230.The Internet Service 230 comprises IP services corresponding tooperators, specifically including Internet, Intranet, IP MultimediaSubsystem (IMS) and Packet Switching Streaming (PSS) services.

In one embodiment, the UE 201 corresponds to the first node in thepresent disclosure, the first node being a UE.

In one embodiment, the gNB 203 corresponds to the first node in thepresent disclosure, the first node being a base station.

In one embodiment, the UE 201 supports wireless communications wheredata is transmitted on Unlicensed Spectrum.

In one embodiment, the gNB 203 supports wireless communications wheredata is transmitted on Unlicensed Spectrum.

Embodiment 3

Embodiment 3 illustrates a schematic diagram of a radio protocolarchitecture of a user plane and a control plane, as shown in FIG. 3 .

FIG. 3 is a schematic diagram illustrating a radio protocol architectureof a user plane and a control plane. In FIG. 3 , the radio protocolarchitecture for a UE and a base station (gNB, eNB) is represented bythree layers, which are a layer 1, a layer 2 and a layer 3,respectively. The layer 1 (L1) is the lowest layer and performs signalprocessing functions of various PHY layers. The L1 is called PHY 301 inthe present disclosure. The layer 2 (L2) 305 is above the PHY 301, andis in charge of the link between the UE and the gNB via the PHY 301. Inthe user plane, L2 305 comprises a Medium Access Control (MAC) sublayer302, a Radio Link Control (RLC) sublayer 303 and a Packet DataConvergence Protocol (PDCP) sublayer 304. All the three sublayersterminate at the gNBs of the network side. Although not described inFIG. 3 , the UE may comprise several higher layers above the L2 305,such as a network layer (i.e., IP layer) terminated at a P-GW 213 of thenetwork side and an application layer terminated at the other side ofthe connection (i.e., a peer UE, a server, etc.). The PDCP sublayer 304provides multiplexing among variable radio bearers and logical channels.The PDCP sublayer 304 also provides a header compression for ahigher-layer packet so as to reduce a radio transmission overhead. ThePDCP sublayer 304 provides security by encrypting a packet and providessupport for UE handover between gNBs. The RLC sublayer 303 providessegmentation and reassembling of a higher-layer packet, retransmissionof a lost packet, and reordering of a packet so as to compensatedisordered receiving caused by HARQ. The MAC sublayer 302 providesmultiplexing between a logical channel and a transport channel. The MACsublayer 302 is also responsible for allocating between UEs variousradio resources (i.e., resource blocks) in a cell. The MAC sublayer 302is also in charge of HARQ operation. In the control plane, the radioprotocol architecture of the UE and the gNB is almost the same as theradio protocol architecture in the user plane on the PHY 301 and the L2305, but there is no header compression for the control plane. Thecontrol plane also comprises an RRC sublayer 306 in the layer 3 (L3).The RRC sublayer 306 is responsible for acquiring radio resources (i.e.,radio bearer) and configuring the lower layer using an RRC signalingbetween the gNB and the UE.

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the first node in the present disclosure.

In one embodiment, the first information in the present disclosure isgenerated by the RRC sublayer 306.

In one embodiment, the first information in the present disclosure isgenerated by the MAC sublayer 302.

In one embodiment, the first information in the present disclosure isgenerated by the PHY301.

In one embodiment, the T access detections in the present disclosure aregenerated by the PHY301.

In one embodiment, the T first-type radio signals in the presentdisclosure are generated by the PHY301.

In one embodiment, the T second-type radio signals in the presentdisclosure are generated by the PHY301.

In one embodiment, the third-type radio signal in the present disclosureis generated by the PHY301.

In one embodiment, the S fourth-type radio signal(s) in the presentdisclosure is(are) generated by the PHY301.

In one embodiment, the S fifth-type radio signal(s) in the presentdisclosure is(are) generated by the PHY301.

In one embodiment, the Q energy detection(s) in the present disclosureis(are) generated by the PHY301.

Embodiment 4

Embodiment 4 illustrates a schematic diagram of a base station (NR node)and a UE, as shown in FIG. 4 . FIG. 4 is a block diagram of a gNB 410 incommunication with UE 450 in an access network.

A base station (410) comprises a controller/processor 440, a memory 430,a receiving processor 412, a beam processor 471, a transmittingprocessor 415, a transmitter/receiver 416 and an antenna 420.

A UE (450) comprises a controller/processor 490, a memory 480, a datasource 467, a beam processor 441, a transmitting processor 455, areceiving processor 452, a transmitter/receiver 456 and antenna 460.

In downlink transmission, processes relevant to the base station 410comprise the following:

A higher-layer packet is provided to the controller/processor 440, andthe controller/processor 440 provides header compression, encryption,packet segmentation and reordering as well as multiplexing anddemultiplexing between a logical channel and a transport channel so asto implement the L2 layer protocols used for the user plane and thecontrol plane; the higher-layer packet may comprise data or controlinformation, such as a Downlink Shared Channel (DL-SCH).

The controller/processor 440 is associated with the memory 430 thatstores program code and data; the memory 430 can be a computer readablemedium.

The controller/processor 440 comprises a scheduling unit fortransmission requests, where the scheduling unit is used to scheduleradio resources corresponding to transmission requests.

The beam processor 471 performs T access detections respectively on Tsub-bands, transmits T second-type radio signals respectively in Ttime-frequency resource blocks and performs Q energy detection(s)respectively in Q time sub-pool(s) on a first sub-band.

The transmitting processor 415 receives bit flows output from thecontroller/processor 440 and provides various signal transmittingprocessing functions used for the L1 layer (that is PHY), includingcoding, interleaving, scrambling, modulating, power control/allocationand generation of physical layer control signaling (such as PBCH, PDCCH,PHICH, PCFICH and a reference signal).

The transmitting processor 415 receives bit flows output from thecontroller/processor 440 and provides various signal transmittingprocessing functions used for the L1 layer (that is PHY), includingmulti-antenna transmission, spreading, code division multiplexing, andprecoding.

The transmitter 416 is configured to convert a baseband signal providedfrom the transmitting processor 415 into a radio frequency signal whichis to be transmitted via the antenna 420; each transmitter 416 performssampling processing on respectively input symbol stream to acquirerespective sampled signal stream. And each transmitter 416 furtherprocesses respectively sampled stream, for instance, bydigital-to-analogue conversion, amplification, filtering andupconversion, to obtain a downlink signal.

In downlink transmission, processes relevant to the UE 450 may comprisethe following:

The receiver 456 is used to convert a radio frequency signal receivedvia the antenna 460 into a baseband signal to be provided to thereceiving processor 452.

The receiving processor 452 provides various signal receiving processingfunctions used for the L1 layer (that is PHY), including decoding,de-interleaving, descrambling, demodulating and extraction of physicallayer control signaling.

The receiving processor 452 provides various signal receiving processingfunctions used for the L1 layer (that is PHY), including multi-antennareception, despreading, code division multiplexing and precoding.

The beam processor 441 determines T first-type radio signals.

The controller/processor 490 receives bit flows output by the receivingprocessor 452, and provides header decompression, decryption, packetsegmentation and reordering as well as multiplexing and demultiplexingbetween a logical channel and a transport channel so as to implement theL2 layer protocols used for the user plane and the control plane.

The controller/processor 490 is associated with the memory 480 thatstores program code and data; the memory 480 may be called a computerreadable medium.

In uplink (UL) transmission, processes relevant to the base station 410comprise the following:

The receiver 416 receives a radio frequency signal via a correspondingantenna 420, converting the radio frequency signal into a basebandsignal and providing the baseband signal to the receiving processor 412.

The receiving processor 412 provides various signal receiving processingfunctions used for the L1 layer (that is PHY), including decoding,de-interleaving, descrambling, demodulation and extraction of physicallayer control signaling.

The receiving processor 412 provides various signal receiving processingfunctions used for the L1 layer (that is PHY), including multi-antennareception, despreading, code division multiplexing and precoding.

The controller/processor 440 implements the functions of the L2 layer,and is associated with the memory 430 that stores program code and data.

The controller/processor 440 provides demultiplexing between a transportchannel and a logical channel, packet reassembling, decryption, headerdecompression and control signal processing so as to recover ahigher-layer packet from the UE450; the higher-layer packet may beprovided to a core network.

The beam processor 471 determines T first-type radio signals.

In UL, processes relevant to the UE 450 comprise the following:

The data source 467 provides a higher-layer packet to thecontroller/processor 490. The data source 467 represents all protocollayers above the L2 layer.

The transmitter 456 transmits a radio frequency signal via acorresponding antenna 460, converting a baseband signal into a radiofrequency signal and providing the radio frequency signal to thecorresponding antenna 460.

The transmitting processor 455 provides various signal transmittingprocessing functions used for the L1 layer (i.e., PHY), includingcoding, interleaving, scrambling, modulation and generation of physicallayer control signaling.

The transmitting processor 455 provides various signal transmittingprocessing functions used for the L1 layer (i.e., PHY), includingmulti-antenna transmission, spreading, code division multiplexing andprecoding.

The controller/processor 490 performs header compression, encryption,packet segmentation and reordering as well as multiplexing between alogical channel and a transport channel based on radio resourcesallocation of the gNB410, thereby implementing the L2 layer functionsused for the user plane and the control plane.

The controller/processor 490 is also in charge of HARQ operation,retransmission of a lost packet and a signaling to the gNB410.

The beam processor 441 performs T access detections respectively on Tsub-bands, transmits T second-type radio signals respectively in Ttime-frequency resource blocks and performs Q energy detection(s)respectively in Q time sub-pool(s) on a first sub-band.

In one embodiment, the UE 450 comprises at least one processor and atleast one memory. The at least one memory includes computer programcodes. The at least one memory and the computer program codes areconfigured to be used in collaboration with the at least one processor.The UE 450 at least receives first information; and transmits a firstradio signal in a first time window in a first frequency sub-band;herein, the first information is used for determining the first timewindow; a time offset of a start time for a transmission of the firstradio signal relative to a reference time belongs to a target offsetset, and the target offset set comprises W offset value(s), W being apositive integer; time offset(s) of W start time(s) respectivelyrelative to the reference time is(are) respectively equal to the Woffset value(s); any start time of the W start time(s) belongs to one ofN time units, and any of the N time units comprises at least one of theW start time(s), of the N time units any two time units are orthogonal,each of the N time units belongs to the first time window, and aduration of each of the N time units is related to a subcarrier spacing(SCS) of subcarriers occupied by the first radio signal; at least one ofthe N or the target offset set is related to the SCS of the subcarriersoccupied by the first radio signal.

In one embodiment, the UE 450 comprises a memory that stores a computerreadable instruction program. The computer readable instruction programgenerates actions when executed by at least one processor, whichinclude: receiving first information; and transmitting a first radiosignal in a first time window in a first frequency sub-band; herein, thefirst information is used for determining the first time window; a timeoffset of a start time for a transmission of the first radio signalrelative to a reference time belongs to a target offset set, and thetarget offset set comprises W offset value(s), W being a positiveinteger; time offset(s) of W start time(s) respectively relative to thereference time is(are) respectively equal to the W offset value(s); anystart time of the W start time(s) belongs to one of N time units, andany of the N time units comprises at least one of the W start time(s),of the N time units any two time units are orthogonal, each of the Ntime units belongs to the first time window, and a duration of each ofthe N time units is related to a subcarrier spacing (SCS) of subcarriersoccupied by the first radio signal; at least one of the N or the targetoffset set is related to the SCS of the subcarriers occupied by thefirst radio signal.

In one embodiment, the gNB 410 comprises at least one processor and atleast one memory. The at least one memory includes computer programcodes. The at least one memory and the computer program codes areconfigured to be used in collaboration with the at least one processor.The gNB 410 at least transmits first information; and receives a firstradio signal in a first time window in a first frequency sub-band;herein, the first information is used for determining the first timewindow; a time offset of a start time for a transmission of the firstradio signal relative to a reference time belongs to a target offsetset, and the target offset set comprises W offset value(s), W being apositive integer; time offset(s) of W start time(s) respectivelyrelative to the reference time is(are) respectively equal to the Woffset value(s); any start time of the W start time(s) belongs to one ofN time units, and any of the N time units comprises at least one of theW start time(s), of the N time units any two time units are orthogonal,each of the N time units belongs to the first time window, and aduration of each of the N time units is related to a subcarrier spacing(SCS) of subcarriers occupied by the first radio signal; at least one ofthe N or the target offset set is related to the SCS of the subcarriersoccupied by the first radio signal.

In one embodiment, the gNB 410 comprises a memory that stores a computerreadable instruction program. The computer readable instruction programgenerates actions when executed by at least one processor, whichinclude: transmitting first information; and receiving a first radiosignal in a first time window in a first frequency sub-band; herein, thefirst information is used for determining the first time window; a timeoffset of a start time for a transmission of the first radio signalrelative to a reference time belongs to a target offset set, and thetarget offset set comprises W offset value(s), W being a positiveinteger; time offset(s) of W start time(s) respectively relative to thereference time is(are) respectively equal to the W offset value(s); anystart time of the W start time(s) belongs to one of N time units, andany of the N time units comprises at least one of the W start time(s),of the N time units any two time units are orthogonal, each of the Ntime units belongs to the first time window, and a duration of each ofthe N time units is related to a subcarrier spacing (SCS) of subcarriersoccupied by the first radio signal; at least one of the N or the targetoffset set is related to the SCS of the subcarriers occupied by thefirst radio signal.

In one embodiment, the UE 450 corresponds to the first node of thepresent disclosure, the first node being a UE.

In one embodiment, the gNB 410 corresponds to the first node of thepresent disclosure, the first node being a base station.

In one embodiment, at least the first two of the receiver 456, thereceiving processor 452 and the controller/processor 490 are used forreceiving the first information in the present disclosure; the firstnode in the present disclosure is a UE.

In one embodiment, at least the first two of the transmitter 416, thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the first information in the present disclosure; the firstnode in the present disclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver456, the transmitting processor 455, the receiving processor 452 and thecontroller/processor 490 are used for receiving the first information inthe present disclosure; the first node in the present disclosure is aUE.

In one embodiment, at least the first three of the transmitter/receiver416, the receiving processor 412, the transmitting processor 415 and thecontroller/processor 440 are used for transmitting the first informationin the present disclosure; the first node in the present disclosure is aUE.

In one embodiment, at least the first two of the receiver 456, thereceiving processor 452 and the controller/processor 490 are used forreceiving the T first-type radio signals in the present disclosure; thefirst node in the present disclosure is a UE.

In one embodiment, at least the first two of the transmitter 416, thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the T first-type radio signals in the present disclosure;the first node in the present disclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver456, the transmitting processor 455, the receiving processor 452 and thecontroller/processor 490 are used for receiving the T first-type radiosignals in the present disclosure; the first node in the presentdisclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver416, the receiving processor 412, the transmitting processor 415 and thecontroller/processor 440 are used for transmitting the T first-typeradio signals in the present disclosure; the first node in the presentdisclosure is a UE.

In one embodiment, at least the first two of the receiver 456, thereceiving processor 452 and the controller/processor 490 are used forreceiving the S fourth-type radio signal(s) in the present disclosure;the first node in the present disclosure is a UE.

In one embodiment, at least the first two of the transmitter 416, thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the S fourth-type radio signal(s) in the presentdisclosure; the first node in the present disclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver456, the transmitting processor 455, the receiving processor 452 and thecontroller/processor 490 are used for receiving the S fourth-type radiosignal(s) in the present disclosure; the first node in the presentdisclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver416, the receiving processor 412, the transmitting processor 415 and thecontroller/processor 440 are used for transmitting the S fourth-typeradio signal(s) in the present disclosure; the first node in the presentdisclosure is a UE.

In one embodiment, at least the first two of the receiver 456, thereceiving processor 452 and the controller/processor 490 are used forperforming T access detections in the present disclosure respectively onthe T sub-bands in the present disclosure; the first node in the presentdisclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver456, the transmitting processor 455, the receiving processor 452 and thecontroller/processor 490 are used for performing T access detections inthe present disclosure respectively on the T sub-bands in the presentdisclosure; the first node in the present disclosure is a UE.

In one embodiment, at least the first two of the receiver 456, thereceiving processor 452 and the controller/processor 490 are used forperforming Q energy detection(s) in the present disclosure respectivelyin the Q time sub-pool(s) on the first sub-band in the presentdisclosure; the first node in the present disclosure is a UE.

In one embodiment, at least the first two of the transmitter 456, thetransmitting processor 455 and the controller/processor 490 are used fortransmitting the T second-type radio signals in the present disclosurerespectively in the T time-frequency resource blocks in the presentdisclosure; the first node in the present disclosure is a UE.

In one embodiment, at least the first two of the receiver 416, thereceiving processor 412 and the controller/processor 440 are used forreceiving the T second-type radio signals in the present disclosurerespectively in the T time-frequency resource blocks in the presentdisclosure; the first node in the present disclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver456, the receiving processor 452, the transmitting processor 455 and thecontroller/processor 490 are used for transmitting the T second-typeradio signals in the present disclosure respectively in the Ttime-frequency resource blocks in the present disclosure; the first nodein the present disclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver416, the transmitting processor 415, the receiving processor 412 and thecontroller/processor 440 are used for receiving the T second-type radiosignals in the present disclosure respectively in the T time-frequencyresource blocks in the present disclosure; the first node in the presentdisclosure is a UE.

In one embodiment, at least the first two of the transmitter 456, thetransmitting processor 455 and the controller/processor 490 are used fortransmitting the S fifth-type radio signal(s) in the present disclosurein the reference time-frequency resource block in the presentdisclosure; the first node in the present disclosure is a UE.

In one embodiment, at least the first two of the receiver 416, thereceiving processor 412 and the controller/processor 440 are used forreceiving the S fifth-type radio signal(s) in the present disclosure inthe reference time-frequency resource block in the present disclosure;the first node in the present disclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver456, the receiving processor 452, the transmitting processor 455 and thecontroller/processor 490 are used for transmitting the S fifth-typeradio signal(s) in the present disclosure in the referencetime-frequency resource block in the present disclosure; the first nodein the present disclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver416, the transmitting processor 415, the receiving processor 412 and thecontroller/processor 440 are used for receiving the S fifth-type radiosignal(s) in the present disclosure in the reference time-frequencyresource block in the present disclosure; the first node in the presentdisclosure is a UE.

In one embodiment, at least the first two of the transmitter 456, thetransmitting processor 455 and the controller/processor 490 are used fortransmitting the third-type radio signal in the present disclosure inthe first sub-band in the present disclosure; the first node in thepresent disclosure is a UE.

In one embodiment, at least the first two of the receiver 416, thereceiving processor 412 and the controller/processor 440 are used forreceiving the third-type radio signal in the present disclosure in thefirst sub-band in the present disclosure; the first node in the presentdisclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver456, the receiving processor 452, the transmitting processor 455 and thecontroller/processor 490 are used for transmitting the third-type radiosignal in the present disclosure in the first sub-band in the presentdisclosure; the first node in the present disclosure is a UE.

In one embodiment, at least the first three of the transmitter/receiver416, the transmitting processor 415, the receiving processor 412 and thecontroller/processor 440 are used for receiving the third-type radiosignal in the present disclosure in the first sub-band in the presentdisclosure; the first node in the present disclosure is a UE.

In one embodiment, at least the first two of the receiver 456, thereceiving processor 452 and the controller/processor 490 are used forreceiving the first information in the present disclosure; the firstnode in the present disclosure is a base station.

In one embodiment, at least the first two of the transmitter 416, thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the first information in the present disclosure; the firstnode in the present disclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver456, the transmitting processor 455, the receiving processor 452 and thecontroller/processor 490 are used for receiving the first information inthe present disclosure; the first node in the present disclosure is abase station.

In one embodiment, at least the first three of the transmitter/receiver416, the receiving processor 412, the transmitting processor 415 and thecontroller/processor 440 are used for transmitting the first informationin the present disclosure; the first node in the present disclosure is abase station.

In one embodiment, at least the first two of the transmitter 456, thetransmitting processor 455 and the controller/processor 490 are used fortransmitting the T first-type radio signals in the present disclosure;the first node in the present disclosure is a base station.

In one embodiment, at least the first two of the receiver 416, thereceiving processor 412 and the controller/processor 440 are used forreceiving the T first-type radio signals in the present disclosure; thefirst node in the present disclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver456, the transmitting processor 455, the receiving processor 452 and thecontroller/processor 490 are used for transmitting the T first-typeradio signals in the present disclosure; the first node in the presentdisclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver416, the receiving processor 412, the transmitting processor 415 and thecontroller/processor 440 are used for receiving the T first-type radiosignals in the present disclosure; the first node in the presentdisclosure is a base station.

In one embodiment, at least the first two of the transmitter 456, thetransmitting processor 455 and the controller/processor 490 are used fortransmitting the S fourth-type radio signal(s) in the presentdisclosure; the first node in the present disclosure is a base station.

In one embodiment, at least the first two of the receiver 416, thereceiving processor 412 and the controller/processor 440 are used forreceiving the S fourth-type radio signal(s) in the present disclosure;the first node in the present disclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver456, the transmitting processor 455, the receiving processor 452 and thecontroller/processor 490 are used for transmitting the S fourth-typeradio signal(s) in the present disclosure; the first node in the presentdisclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver416, the receiving processor 412, the transmitting processor 415 and thecontroller/processor 440 are used for receiving the S fourth-type radiosignal(s) in the present disclosure; the first node in the presentdisclosure is a base station.

In one embodiment, at least the first two of the receiver 416, thereceiving processor 412 and the controller/processor 440 are used forperforming T access detections in the present disclosure respectively onthe T sub-bands in the present disclosure; the first node in the presentdisclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver416, the receiving processor 412, the transmitting processor 415 and thecontroller/processor 440 are used for performing T access detections inthe present disclosure respectively on the T sub-bands in the presentdisclosure; the first node in the present disclosure is a base station.

In one embodiment, at least the first two of the receiver 416, thereceiving processor 412 and the controller/processor 440 are used forperforming Q energy detection(s) in the present disclosure respectivelyin the Q time sub-pool(s) on the first sub-band in the presentdisclosure; the first node in the present disclosure is a base station.

In one embodiment, at least the first two of the receiver 456, thereceiving processor 452 and the controller/processor 490 are used forreceiving the T second-type radio signals in the present disclosurerespectively in the T time-frequency resource blocks in the presentdisclosure; the first node in the present disclosure is a base station.

In one embodiment, at least the first two of the transmitter 416, thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the T second-type radio signals in the present disclosurerespectively in the T time-frequency resource blocks in the presentdisclosure; the first node in the present disclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver456, the transmitting processor 455, the receiving processor 452 and thecontroller/processor 490 are used for receiving the T second-type radiosignals in the present disclosure respectively in the T time-frequencyresource blocks in the present disclosure; the first node in the presentdisclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver416, the receiving processor 412, the transmitting processor 415 and thecontroller/processor 440 are used for transmitting the T second-typeradio signals in the present disclosure respectively in the Ttime-frequency resource blocks in the present disclosure; the first nodein the present disclosure is a base station.

In one embodiment, at least the first two of the receiver 456, thereceiving processor 452 and the controller/processor 490 are used forreceiving the S fifth-type radio signal(s) in the present disclosure inthe reference time-frequency resource block in the present disclosure;the first node in the present disclosure is a base station.

In one embodiment, at least the first two of the transmitter 416, thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the S fifth-type radio signal(s) in the present disclosurein the reference time-frequency resource block in the presentdisclosure; the first node in the present disclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver456, the transmitting processor 455, the receiving processor 452 and thecontroller/processor 490 are used for receiving the S fifth-type radiosignal(s) in the present disclosure in the reference time-frequencyresource block in the present disclosure; the first node in the presentdisclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver416, the receiving processor 412, the transmitting processor 415 and thecontroller/processor 440 are used for transmitting the S fifth-typeradio signal(s) in the present disclosure in the referencetime-frequency resource block in the present disclosure; the first nodein the present disclosure is a base station.

In one embodiment, at least the first two of the receiver 456, thereceiving processor 452 and the controller/processor 490 are used forreceiving the third-type radio signal in the present disclosure in thefirst sub-band in the present disclosure; the first node in the presentdisclosure is a base station.

In one embodiment, at least the first two of the transmitter 416, thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the third-type radio signal in the present disclosure inthe first sub-band in the present disclosure; the first node in thepresent disclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver456, the transmitting processor 455, the receiving processor 452 and thecontroller/processor 490 are used for receiving the third-type radiosignal in the present disclosure in the first sub-band in the presentdisclosure; the first node in the present disclosure is a base station.

In one embodiment, at least the first three of the transmitter/receiver416, the receiving processor 412, the transmitting processor 415 and thecontroller/processor 440 are used for transmitting the third-type radiosignal in the present disclosure in the first sub-band in the presentdisclosure; the first node in the present disclosure is a base station.

Embodiment 5

Embodiment 5 illustrates a flowchart of wireless transmission, as shownin FIG. 5 . In FIG. 5 , a base station N01 is a maintenance base stationfor a serving cell of a UE U02. The box F1 in FIG. 5 is optional.

The N01 performs T access detections respectively on T sub-bands in stepS11; transmits T second-type radio signals respectively in Ttime-frequency resource blocks in step S12; and receives T first-typeradio signals in step S13; transmits S fifth-type radio signal(s) in areference time-frequency resource block in step S14; receives Sfourth-type radio signal(s) in step S15; and transmits first informationin step S16; performs Q energy detection(s) respectively in Q timesub-pool(s) on a first sub-band in step S17, through which Q detectionvalue(s) is(are) obtained; and transmits a third-type radio signal in afirst sub-band in step S18.

The U02 receives T second-type radio signals respectively in Ttime-frequency resource blocks in step S21; transmits T first-type radiosignals in step S22; and also receives S fifth-type radio signal(s) in areference time-frequency resource block in step S23; transmits Sfourth-type radio signal(s) in step S24; receives first information instep S25; and receives a third-type radio signal in a first sub-band instep S26.

In Embodiment 5, the T is a positive integer greater than 1, and the Qis a positive integer; the T sub-bands comprise at least one samefrequency point, or the T sub-bands belong to a same carrier; at leastone sub-band of the T sub-bands is different from the first sub-band;the T first-type radio signals are respectively associated with the Tsecond-type radio signals; a reference first-type radio signal is one ofthe T first-type radio signals, the Q is related only to the referencefirst-type radio signal of the T first-type radio signals; the T accessdetections are respectively used by the N01 for determiningtransmissions of the T second-type radio signals; a reference sub-bandis one of the T sub-bands corresponding to the reference first-typeradio signal, and a reference time-frequency resource block is one ofthe T time-frequency resource blocks corresponding to the referencefirst-type radio signal; selection of the reference time-frequencyresource block is related to at least one of the first sub-band or thereference sub-band; the first node is a base station, and the Tfirst-type radio signals respectively indicate whether the T second-typeradio signals are correctly received; a reference second-type radiosignal is one of the T second-type radio signals associated with thereference first-type radio signal, and the reference second-type radiosignal comprises W sub-signal(s), W being a positive integer; whetherthe W sub-signal(s) is(are) correctly received is used by the N01 fordetermining the Q. A start time of time-domain resources occupied by thethird-type radio signal is no earlier than an end time of the Q timesub-pool(s). And the first information comprises scheduling informationof the third-type radio signal.

In one embodiment, a ratio of a number of sub-signal(s) not having beencorrectly received out of the W sub-signal(s) to the W is used fordetermining the Q.

In one embodiment, the first node is a base station, and the Sfourth-type radio signal(s) indicates(indicate) whether the S fifth-typeradio signal(s) is(are) correctly received respectively; the referencefirst-type radio signal and the S fourth-type radio signal(s) arejointly used for determining the Q.

In one subembodiment of the above embodiment, the S fifth-type radiosignal(s) comprises(comprise) W1 sub-signal(s), W1 being a positiveinteger; whether the W sub-signal(s) and the W1 sub-signal(s) arecorrectly received is used by the N01 for determining the Q.

In one subembodiment of the above embodiment, a ratio of a number ofsub-signal(s) not having been correctly received among the total of theW sub-signal(s) and the W1 sub-signal(s) to a sum of the W and the W1 isused by the N01 for determining the Q.

In one embodiment, the Q energy detection(s) is(are) respectively energydetection(s) in a downlink access detection.

In one embodiment, a start time of a transmission of any of the Tfirst-type radio signals is later than an end time of a transmission ofan associated second-type radio signal of the T second-type radiosignals.

In one embodiment, each of the T first-type radio signals comprisesHybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK).

In one embodiment, any of the T first-type radio signals comprisesUplink control information (UCI), and the first node is a base station.

In one embodiment, the T first-type radio signals are respectivelytransmitted on T uplink physical layer control channels (i.e., uplinkchannels only capable of carrying physical layer signaling).

In one subembodiment of the above embodiment, the T uplink physicallayer control channels are Physical Uplink Control CHannels (PUCCHs)respectively.

In one subembodiment of the above embodiment, the T uplink physicallayer control channels are short PUCCHs (sPUCCHs) respectively.

In one subembodiment of the above embodiment, the T uplink physicallayer control channels are New Radio PUCCHs (NR-PUCCHs) respectively.

In one subembodiment of the above embodiment, the T uplink physicallayer control channels are Narrow Band PUCCHs (NB-PUCCHs) respectively.

In one embodiment, the T first-type radio signals are respectivelytransmitted on T uplink physical layer data channels (i.e., uplinkchannels capable of carrying physical layer data).

In one subembodiment of the above embodiment, the T uplink physicallayer data channels are Physical Uplink Shared CHannels (PUSCHs)respectively.

In one subembodiment of the above embodiment, the T uplink physicallayer data channels are short PUSCHs (sPUSCHs) respectively.

In one subembodiment of the above embodiment, the T uplink physicallayer data channels are New Radio PUSCHs (NR-PUSCHs) respectively.

In one subembodiment of the above embodiment, the T uplink physicallayer data channels are Narrow Band PUSCHs (NB-PUSCHs) respectively.

In one embodiment, any of the T second-type radio signals comprisesdata.

In one embodiment, the T second-type radio signals are respectivelytransmitted on T downlink physical layer data channels (i.e., downlinkchannels capable of carrying physical layer data).

In one subembodiment of the above embodiment, the T downlink physicallayer data channels are Physical Downlink Shared CHannels (PDSCHs)respectively.

In one subembodiment of the above embodiment, the T downlink physicallayer data channels are short PDSCHs (sPDSCHs) respectively.

In one subembodiment of the above embodiment, the T downlink physicallayer data channels are New Radio PDSCHs (NR-PDSCHs) respectively.

In one subembodiment of the above embodiment, the T downlink physicallayer data channels are Narrow Band PDSCHs (NB-PDSCHs) respectively.

In one embodiment, transmission channels for the T second-type radiosignals are DownLink Shared Channels (DL-SCHs) respectively.

In one embodiment, a start time of a transmission of any of the Sfourth-type radio signal(s) is later than an end time of a transmissionof an associated fifth-type radio signal out of the S fifth-type radiosignal(s).

In one embodiment, each of the S fourth-type radio signal(s) comprisesHARQ-ACK.

In one embodiment, any of the S fourth-type radio signal(s) comprisesUCI, and the first node is a base station.

In one embodiment, the S fourth-type radio signal(s) is(are)respectively transmitted on S uplink physical layer control channel(s)(i.e., uplink channel(s) only capable of carrying physical layersignaling).

In one subembodiment of the above embodiment, the S uplink physicallayer control channel(s) is(are) PUCCH(s) respectively.

In one subembodiment of the above embodiment, the S uplink physicallayer control channel(s) is(are) sPUCCH(s) respectively.

In one subembodiment of the above embodiment, the S uplink physicallayer control channel(s) is(are) NR-PUCCH(s) respectively.

In one subembodiment of the above embodiment, the S uplink physicallayer control channel(s) is(are) NB-PUCCH(s) respectively.

In one embodiment, the S fourth-type radio signal(s) is(are)respectively transmitted on S uplink physical layer data channel(s)(i.e., uplink channel(s) capable of carrying physical layer data).

In one subembodiment of the above embodiment, the S uplink physicallayer data channel(s) is(are) PUSCH(s) respectively.

In one subembodiment of the above embodiment, the S uplink physicallayer data channel(s) is(are) sPUSCH(s) respectively.

In one subembodiment of the above embodiment, the S uplink physicallayer data channel(s) is(are) NR-PUSCH(s) respectively.

In one subembodiment of the above embodiment, the S uplink physicallayer data channel(s) is(are) NB-PUSCH(s) respectively.

In one embodiment, any of the S fifth-type radio signal(s) comprisesdata.

In one embodiment, the S fifth-type radio signal(s) is(are) respectivelytransmitted on S downlink physical layer data channel(s) (i.e., downlinkchannel(s) capable of carrying physical layer data).

In one subembodiment of the above embodiment, the S downlink physicallayer data channel(s) is(are) PDSCH(s) respectively.

In one subembodiment of the above embodiment, the S downlink physicallayer data channel(s) is(are) sPDSCH(s) respectively.

In one subembodiment of the above embodiment, the S downlink physicallayer data channel(s) is(are) NR-PDSCH(s) respectively.

In one subembodiment of the above embodiment, the S downlink physicallayer data channel(s) is(are) NB-PDSCH(s) respectively.

In one embodiment, transmission channel(s) for the S fifth-type radiosignal(s) is(are) DL-SCH(s) respectively.

In one embodiment, frequency-domain resources occupied by the third-typeradio signal belong to the first sub-band.

In one embodiment, the third-type radio signal comprises at least one ofdata, control information or a reference signal.

In one embodiment, the third-type radio signal comprises data.

In one embodiment, the third-type radio signal comprises controlinformation.

In one embodiment, the third-type radio signal comprises a referencesignal.

In one embodiment, the third-type radio signal comprises data, controlinformation and a reference signal.

In one embodiment, the third-type radio signal comprises data andcontrol information.

In one embodiment, the third-type radio signal comprises controlinformation and a reference signal.

In one embodiment, the third-type radio signal comprises data and areference signal.

In one subembodiment, the data refers to downlink data, the controlinformation is Downlink Control Information (DCI), and the referencesignal comprises one or more of DeModulation Reference Signals (DMRS), aChannel State Information-Reference Signal (CSI-RS), fine time/frequencyTracking Reference Signals (TRS) or Phase error Tracking ReferenceSignals (PRTS).

In one embodiment, scheduling information of the third-type radio signalcomprises at least one of a Modulation and Coding Scheme (MCS),configuration information of DMRS, a HARQ process number, a RedundancyVersion (RV), a New Data Indicator (NDI), occupied time-frequencyresources, corresponding multi-antenna related transmission orcorresponding multi-antenna related reception.

In one subembodiment, the third-type radio signal comprises data.

In one subembodiment, the configuration information of the DMRScomprises one or more of occupied time-domain resources, occupiedfrequency-domain resources, occupied code-domain resources, a cyclicshift or an Orthogonal Cover Code (OCC).

In one embodiment, scheduling information of the third-type radio signalcomprises at least one of occupied time-domain resources, occupiedfrequency-domain resources, occupied code-domain resources, a cyclicshift, an Orthogonal Cover Code (OCC), an occupied antenna port,corresponding multi-antenna related transmission or correspondingmulti-antenna related reception.

In one subembodiment, the third-type radio signal comprises a referencesignal.

In one embodiment, the third-type radio signal is transmitted on adownlink physical layer data channel (i.e., a downlink channel capableof carrying physical layer data).

In one subembodiment, the downlink physical layer data channel is aPDSCH.

In one subembodiment, the downlink physical layer data channel is ansPDSCH.

In one subembodiment, the downlink physical layer data channel is anNR-PDSCH.

In one subembodiment, the downlink physical layer data channel is anNB-PDSCH.

In one embodiment, a transmission channel for the third-type radiosignal is a DL-SCH.

In one embodiment, the first information is dynamically configured.

In one embodiment, the first information is carried by a physical layersignaling.

In one embodiment, the first information belongs to DCI.

In one embodiment, the first information belongs to DownLink Grant DCI.

In one embodiment, the first information is a field of a piece of DCI,the field comprising a positive integer number of bit(s).

In one embodiment, the first information is composed of multiple fieldsof a piece of DCI, each comprising a positive integer number of bit(s).

In one embodiment, the first information is semi-statically configured.

In one embodiment, the first information is carried by a higher-layersignaling.

In one embodiment, the first information is carried by a Radio ResourceControl (RRC) signaling.

In one embodiment, the first information is all or part of anInformation Element (IE) in an RRC signaling.

In one embodiment, the first information is carried by a Medium AccessControl (MAC) Control Element (CE) signaling.

In one embodiment, the first information is transmitted in a SystemInformation Block (SIB).

In one embodiment, the first information is transmitted in the firstsub-band.

In one embodiment, the first information is transmitted in a frequencyband other than the first sub-band.

In one embodiment, the first information is transmitted in a frequencyband deployed on Licensed Spectrum other than the first sub-band.

In one embodiment, the first information is transmitted in a frequencyband deployed on Unlicensed Spectrum other than the first sub-band.

In one embodiment, the first information is transmitted on a downlinkphysical layer control channel (i.e., a downlink channel only capable ofcarrying a physical layer signaling).

In one subembodiment, the downlink physical layer control channel is aPhysical Downlink Control CHannel (PDCCH).

In one subembodiment, the downlink physical layer control channel is ashort PDCCH (sPDCCH).

In one subembodiment, the downlink physical layer control channel is aNew Radio PDCCH (NR-PDCCH).

In one subembodiment, the downlink physical layer control channel is aNarrow Band PDCCH (NB-PDCCH).

In one embodiment, the first information is transmitted on a downlinkphysical layer data channel (i.e., a downlink channel capable ofcarrying physical layer data).

In one subembodiment, the downlink physical layer data channel is aPDSCH.

In one subembodiment, the downlink physical layer data channel is ansPDSCH.

In one subembodiment, the downlink physical layer data channel is anNR-PDSCH.

In one subembodiment, the downlink physical layer data channel is anNB-PDSCH.

In one embodiment, the multi-antenna related reception refers to SpatialRx parameters.

In one embodiment, the multi-antenna related reception refers to areceiving beam.

In one embodiment, the multi-antenna related reception refers to areception beamforming matrix.

In one embodiment, the multi-antenna related reception refers to areception analog beamforming matrix.

In one embodiment, the multi-antenna related reception refers to areception analog beamforming vector.

In one embodiment, the multi-antenna related reception refers to areception beamforming vector.

In one embodiment, the multi-antenna related reception refers to Rxspatial filtering.

In one embodiment, the multi-antenna related transmission refers toSpatial Tx parameters.

In one embodiment, the multi-antenna related transmission refers to atransmitting beam.

In one embodiment, the multi-antenna related transmission refers to atransmission beamforming matrix.

In one embodiment, the multi-antenna related transmission refers to atransmission analog beamforming matrix.

In one embodiment, the multi-antenna related transmission refers to atransmission analog beamforming vector.

In one embodiment, the multi-antenna related transmission refers to atransmission beamforming vector.

In one embodiment, the multi-antenna related transmission refers to Txspatial filtering.

In one embodiment, the Spatial Tx parameters include one or more of atransmission antenna port, a transmission antenna port group, atransmitting beam, a transmission analog beamforming matrix, atransmission analog beamforming vector, a transmission beamformingmatrix, a transmission beamforming vector or a Tx spatial filtering.

In one embodiment, the Spatial Rx parameters include one or more of areceiving beam, a reception analog beamforming matrix, a receptionanalog beamforming vector, a reception beamforming matrix, a receptionbeamforming vector or a Rx spatial filtering.

Embodiment 6

Embodiment 6 illustrates another flowchart of wireless transmission, asshown in FIG. 6 . In FIG. 6 , a base station N03 is a maintenance basestation for a serving cell of a UE U04. The box F2 in FIG. 6 isoptional.

The N03 transmits T first-type radio signals in step S31; receives Tsecond-type radio signals respectively in T time-frequency resourceblocks in step S32; and transmits S fourth-type radio signal(s) in stepS33; receives S fifth-type radio signal(s) in a reference time-frequencyresource block in step S34; transmits first information in step S35; andreceives a third-type radio signal in a first sub-band in step S36.

The U04 receives T first-type radio signals in step S41; performs Taccess detections respectively on T sub-bands in step S42; and transmitsT second-type radio signals respectively in T time-frequency resourceblocks in step S43; receives S fourth-type radio signal(s) in step S44;and also transmits S fifth-type radio signal(s) in a referencetime-frequency resource block in step S45; receives first information instep S46; performs Q energy detection(s) respectively in Q timesub-pool(s) on a first sub-band in step S47, through which Q detectionvalue(s) is(are) obtained; and transmits a third-type radio signal in afirst sub-band in step S48.

In Embodiment 6, the T is a positive integer greater than 1, and the Qis a positive integer; the T sub-bands comprise at least one samefrequency point, or the T sub-bands belong to a same carrier; at leastone sub-band of the T sub-bands is different from the first sub-band;the T first-type radio signals are respectively associated with the Tsecond-type radio signals; a reference first-type radio signal is one ofthe T first-type radio signals, the Q is related only to the referencefirst-type radio signal of the T first-type radio signals; the T accessdetections are respectively used by the U04 for determiningtransmissions of the T second-type radio signals; a reference sub-bandis one of the T sub-bands corresponding to the reference first-typeradio signal, and a reference time-frequency resource block is one ofthe T time-frequency resource blocks corresponding to the referencefirst-type radio signal; selection of the reference time-frequencyresource block is related to at least one of the first sub-band or thereference sub-band; the first node is a UE, and the T first-type radiosignals respectively comprise scheduling information of the Tsecond-type radio signals; a reference second-type radio signal is oneof the T second-type radio signals associated with the referencefirst-type radio signal, and the reference second-type radio signalcomprises V sub-signal(s), V being a positive integer; the referencefirst-type radio signal is used by the U04 for respectively determiningwhether the V sub-signal(s) comprises(comprise) new data; whether the Vsub-signal(s) comprises(comprise) new data is used by the U04 fordetermining the Q. A start time of time-domain resources occupied by thethird-type radio signal is no earlier than an end time of the Q timesub-pool(s). And the first information comprises scheduling informationof the third-type radio signal.

In one embodiment, a number of sub-signal(s) comprising new data out ofthe V sub-signal(s) is used by the U04 for determining the Q.

In one embodiment, the first node is a UE, and the S fourth-type radiosignal(s) respectively comprises(comprise) scheduling information of theS fifth-type radio signal(s); the reference first-type radio signal andthe S fourth-type radio signal(s) are jointly used by the U04 fordetermining the Q.

In one embodiment, the S fifth-type radio signal(s) comprises(comprise)V1 sub-signal(s), and whether the V sub-signal(s) and the V1sub-signal(s) comprise new data is used by the U04 for determining theQ.

In one subembodiment, a number of sub-signal(s) comprising new dataamong the V sub-signal(s) and the V1 sub-signal(s) is used by the U04for determining the Q.

In one embodiment, the Q energy detection(s) is(are) energy detection(s)in an uplink access detection.

In one embodiment, an end time of a transmission of any of the Tfirst-type radio signals is earlier than a start time of a transmissionof one of the T second-type radio signals.

In one embodiment, any of the T first-type radio signals comprises DCI,and the first node is a UE.

In one embodiment, the T first-type radio signals are respectivelytransmitted on T downlink physical layer control channels (i.e.,downlink channels only capable of carrying physical layer signaling).

In one subembodiment of the above embodiment, the T downlink physicallayer control channels are PDCCHs respectively.

In one subembodiment of the above embodiment, the T downlink physicallayer control channels are sPDCCHs respectively.

In one subembodiment of the above embodiment, the T downlink physicallayer control channels are NR-PDCCHs respectively.

In one subembodiment of the above embodiment, the T downlink physicallayer control channels are NB-PDCCHs respectively.

In one embodiment, the T second-type radio signals are respectivelytransmitted on T uplink physical layer data channels (i.e., uplinkchannels capable of carrying physical layer data).

In one subembodiment of the above embodiment, the T uplink physicallayer data channels are PUSCHs respectively.

In one subembodiment of the above embodiment, the T uplink physicallayer data channels are sPUSCHs respectively.

In one subembodiment of the above embodiment, the T uplink physicallayer data channels are NR-PUSCHs respectively.

In one subembodiment of the above embodiment, the T uplink physicallayer data channels are NB-PUSCHs respectively.

In one embodiment, transmission channels for the T second-type radiosignals are Uplink Shared Channels (UL-SCHs) respectively.

In one embodiment, scheduling information of any second-type radiosignal of the T second-type radio signals comprises at least one of aModulation and Coding Scheme (MC S), configuration information of DMRS,a HARQ process number, a Redundancy Version (RV), a New Data Indicator(NDI), occupied time-frequency resources, corresponding multi-antennarelated transmission or corresponding multi-antenna related reception.

In one subembodiment of the above embodiment, the configurationinformation of the DMRS comprises one or more of occupied time-domainresources, occupied frequency-domain resources, occupied code-domainresources, a cyclic shift or an Orthogonal Cover Code (OCC).

In one embodiment, an end time of a transmission of any of the Sfourth-type radio signal(s) is earlier than a start time of atransmission of one of the S fifth-type radio signal(s).

In one embodiment, any of the S fourth-type radio signal(s) comprisesDCI, and the first node is a UE.

In one embodiment, the S fourth-type radio signal(s) is(are)respectively transmitted on S downlink physical layer control channel(s)(i.e., downlink channel(s) only capable of carrying physical layersignaling).

In one subembodiment of the above embodiment, the S downlink physicallayer control channel(s) is(are) PDCCH(s).

In one subembodiment of the above embodiment, the S downlink physicallayer control channel(s) is(are) sPDCCH(s).

In one subembodiment of the above embodiment, the S downlink physicallayer control channel(s) is(are) NR-PDCCH(s).

In one subembodiment of the above embodiment, the S downlink physicallayer control channel(s) is(are) NB-PDCCH(s).

In one embodiment, the S fifth-type radio signal(s) is(are) respectivelytransmitted on S uplink physical layer data channel(s) (i.e., uplinkchannel(s) capable of carrying physical layer data).

In one subembodiment of the above embodiment, the S uplink physicallayer data channel(s) is(are) PUSCH(s).

In one subembodiment of the above embodiment, the S uplink physicallayer data channel(s) is(are) sPUSCH(s).

In one subembodiment of the above embodiment, the S uplink physicallayer data channel(s) is(are) NR-PUSCH(s).

In one subembodiment of the above embodiment, the S uplink physicallayer data channel(s) is(are) NB-PUSCH(s).

In one embodiment, transmission channel(s) for the S fifth-type radiosignal(s) is(are) respectively Uplink Shared Channel(s) (UL-SCH).

In one embodiment, scheduling information of any of the S fifth-typeradio signal(s) comprises at least one of an MCS, configurationinformation of DMRS, a HARQ process number, an RV, an NDI, occupiedtime-frequency resources, corresponding multi-antenna relatedtransmission or corresponding multi-antenna related reception.

In one subembodiment, the configuration information of the DMRScomprises one or more of occupied time-domain resources, occupiedfrequency-domain resources, occupied code-domain resources, a cyclicshift or an Orthogonal Cover Code (OCC).

In one embodiment, the first information belongs to UpLink Grant DCI.

In one embodiment, frequency-domain resources occupied by the third-typeradio signal belong to the first sub-band.

In one embodiment, the third-type radio signal comprises at least one ofdata, control information or a reference signal.

In one embodiment, the third-type radio signal comprises data.

In one embodiment, the third-type radio signal comprises controlinformation.

In one embodiment, the third-type radio signal comprises a referencesignal.

In one embodiment, the third-type radio signal comprises data, controlinformation and a reference signal.

In one embodiment, the third-type radio signal comprises data andcontrol information.

In one embodiment, the third-type radio signal comprises controlinformation and a reference signal.

In one embodiment, the third-type radio signal comprises data and areference signal.

In one subembodiment of the above embodiment, the data refers to uplinkdata, the control information is UCI, and the reference signal comprisesone or more of a DMRS, a Sounding Reference Signal (SRS) or a PTRS.

In one embodiment, the third-type radio signal is transmitted on anuplink physical layer data channel (i.e., an uplink channel capable ofcarrying physical layer data).

In one subembodiment of the above embodiment, the uplink physical layerdata channel is a PUSCH.

In one subembodiment of the above embodiment, the uplink physical layerdata channel is an sPUSCH.

In one subembodiment of the above embodiment, the uplink physical layerdata channel is an NR-PUSCH.

In one subembodiment of the above embodiment, the uplink physical layerdata channel is an NB-PUSCH.

In one embodiment, a transmission channel for the third-type radiosignal is a UL-SCH.

Embodiment 7

Embodiment 7 illustrates a schematic diagram of selection of a referencetime-frequency resource block, as shown in FIG. 7 .

In Embodiment 7, the selection of the reference time-frequency resourceblock is related to at least one of the first sub-band or the referencesub-band in the present disclosure; a bandwidth of the referencesub-band is equal to a bandwidth of a carrier to which the referencesub-band belongs.

In one embodiment, a bandwidth of the reference sub-band is equal to abandwidth of a carrier to which the first sub-band belongs.

In one embodiment, frequency-domain resources comprised by the referencesub-band are the same as frequency-domain resources comprised by acarrier to which the reference sub-band belongs.

In one embodiment, the selection of the reference time-frequencyresource block is related to the reference sub-band.

In one embodiment, a bandwidth of each sub-band of t1 sub-band(s) out ofthe T sub-bands in the present disclosure is equal to a bandwidth of acarrier to which the reference sub-band belongs, t1 being a positiveinteger no greater than the T.

In one subembodiment, the t1 is greater than 1, the referencetime-frequency resource block being one of t1 time-frequency resourceblocks respectively corresponding to the t1 sub-bands of the Ttime-frequency resource blocks, which is closest to a start time of theQ time sub-pool(s) in time domain.

In one subembodiment, the t1 is equal to 1, the reference time-frequencyresource block being t1 time-frequency resource block of the Ttime-frequency resource blocks that corresponds to the t1 sub-band.

Embodiment 8

Embodiment 8 illustrates another schematic diagram of selection of areference time-frequency resource block, as shown in FIG. 8 .

In Embodiment 8, the reference time-frequency resource block is relatedto at least one of the first sub-band or the reference sub-band in thepresent disclosure; each of t time-frequency resource block(s) out ofthe T time-frequency resource blocks in the present disclosure comprisesthe first sub-band, the t being a positive integer no greater than theT; the reference time-frequency resource is one of the t time-frequencyresource block(s).

In one embodiment, the selection of the reference time-frequencyresource block is related to both the first sub-band and the referencesub-band.

In one embodiment, the t is equal to 1, the reference time-frequencyresource block being the t time-frequency resource block.

In one embodiment, the t is greater than 1, the reference time-frequencyresource block being one of the t time-frequency resource blocks that isclosest to a start time of the Q time sub-pool(s) in time domain.

In one embodiment, the t is greater than 1, the reference time-frequencyresource block being one of the t time-frequency resource blocks whosecorresponding start time is closest to that of the Q time sub-pool(s) intime domain.

Embodiment 9

Embodiment 9 illustrates another schematic diagram of selection of areference time-frequency resource block, as shown in FIG. 9 .

In Embodiment 9, the reference time-frequency resource block is relatedto at least one of the first sub-band or the reference sub-band in thepresent disclosure; each of t time-frequency resource block(s) out ofthe T time-frequency resource blocks in the present disclosure comprisesthe first sub-band, the t being a positive integer no greater than theT; frequency-domain resources respectively comprised by t1time-frequency resource block(s) of the t time-frequency resourceblock(s) are the same as frequency-domain resources comprised by thefirst sub-band, the t1 being a positive integer no greater than the t;the reference time-frequency resource block is one of the t1time-frequency resource block(s); or, frequency-domain resourcescomprised by any of the t time-frequency resource block(s) are notcompletely the same as frequency-domain resources comprised by the firstsub-band, the reference time-frequency resource block being one of the ttime-frequency resource block(s).

In one embodiment, frequency-domain resources respectively comprised byt1 time-frequency resource block of the t time-frequency resourceblock(s) are the same as frequency-domain resources comprised by thefirst sub-band, the t1 being equal to 1, and the referencetime-frequency resource block being the t1 time-frequency resourceblock.

In one embodiment, frequency-domain resources respectively comprised byt1 time-frequency resource blocks of the t time-frequency resourceblocks are the same as frequency-domain resources comprised by the firstsub-band, the t1 being greater than 1, and the reference time-frequencyresource block being one of the t1 time-frequency resource blocks thatis in closest proximity to a start time of the Q time sub-pool(s) intime domain.

In one embodiment, frequency-domain resources respectively comprised byt1 time-frequency resource blocks of the t time-frequency resourceblocks are the same as frequency-domain resources comprised by the firstsub-band, the t1 being greater than 1, and the reference time-frequencyresource block being one of the t1 time-frequency resource blocks whosecorresponding start time is closest to that of the Q time sub-pool(s) intime domain.

In one embodiment, frequency-domain resources comprised by any of the ttime-frequency resource block are not completely the same asfrequency-domain resources comprised by the first sub-band, the t beingequal to 1, and the reference time-frequency resource block being the ttime-frequency resource block.

In one embodiment, frequency-domain resources comprised by any of the ttime-frequency resource blocks are not completely the same asfrequency-domain resources comprised by the first sub-band, the t beinggreater than 1, and the reference time-frequency resource block is oneof the t time-frequency resource blocks that is closest to a start timeof the Q time sub-pool(s) in time domain.

In one embodiment, frequency-domain resources comprised by any of the ttime-frequency resource blocks are not completely the same asfrequency-domain resources comprised by the first sub-band, the t beinggreater than 1, and the reference time-frequency resource block is oneof the t time-frequency resource blocks whose corresponding start timeis closest to that of the Q time sub-pool(s) in time domain.

Embodiment 10

Embodiment 10 illustrates a schematic diagram of relations among J givenfirst radio signal(s), J given second radio signal(s) and Q, as shown inFIG. 10 .

In Embodiment 10, the first node in the present disclosure is a basestation, and the J given first radio signal(s) respectivelyindicates(indicate) whether the J given second radio signal(s) is(are)correctly received; the J given second radio signal(s)comprises(comprise) Y sub-signal(s), and the J given first radiosignal(s) indicates(indicate) whether any of the Y sub-signal(s) iscorrectly received, Y being a positive integer no less than J; whetherthe Y sub-signal(s) is(are) correctly received is used for determiningthe Q. The J given first radio signal(s) corresponds(correspond) to thereference first-type radio signal in the present disclosure, while the Jgiven second radio signal(s) corresponds(correspond) to the referencesecond-type radio signal in the present disclosure, and the Ysub-signal(s) corresponds(correspond) to the W sub-signal(s) in thepresent disclosure, the J being equal to 1 and the Y being equal to theW; or, the J given first radio signals comprise the S fourth-type radiosignal(s) and the reference first-type radio signal in the presentdisclosure, while the J given second radio signals comprise the Sfifth-type radio signal(s) and the reference second-type radio signal inthe present disclosure, and the Y sub-signals comprise the W1sub-signal(s) and the W sub-signal(s) in the present disclosure, the Jbeing equal to the S plus 1 and the Y being a sum of the W1 and the W1.

In one embodiment, the Y is equal to the J, the J given first radiosignal(s) respectively indicating whether the Y sub-signal(s) is(are)correctly received.

In one embodiment, the Y is greater than the J, at least one givensecond radio signal of the J given second radio signal(s) comprisesmultiple sub-signals.

In one embodiment, the Y is greater than the J, any given second radiosignal of the J given second radio signal(s) comprising multiplesub-signals.

In one embodiment, a first reference radio signal comprises Y2sub-signal(s), and the first reference radio signal is any given secondradio signal of the J given second radio signal(s), the Y2 sub-signal(s)belonging to the Y sub-signal(s).

In one subembodiment of the above embodiment, the Y2 is greater than 1,the Y2 sub-signals occupying same time-domain resources.

In one subembodiment of the above embodiment, the Y2 is greater than 1,at least one multicarrier symbol being occupied by each of the Y2sub-signals.

In one subembodiment of the above embodiment, the Y2 is greater than 1,the Y2 sub-signals occupying same frequency-domain resources.

In one subembodiment of the above embodiment, the Y2 is greater than 1,at least one subcarrier being occupied by each of the Y2 sub-signals.

In one subembodiment of the above embodiment, the Y2 is a positiveinteger no greater than 2.

In one subembodiment of the above embodiment, the Y2 is equal to 1.

In one subembodiment of the above embodiment, the Y2 is equal to 2.

In one subembodiment of the above embodiment, the Y2 is equal to anumber of codewords of the first reference radio signal.

In one subembodiment of the above embodiment, the first reference radiosignal comprises Y2 codeword(s), the Y2 sub-signal(s) respectivelycorresponding to the Y2 codeword(s).

In one subembodiment of the above embodiment, the Y2 is greater than 1,the Y2 sub-signals respectively occupying different antenna ports orantenna port groups.

In one subembodiment of the above embodiment, one of the J given firstradio signal(s) corresponding to the first reference radio signalcomprises Y2 first sub-signal(s), the Y2 first sub-signal(s) beingrespectively used for determining whether the Y2 sub-signal(s) is(are)correctly received.

In one embodiment, a first ratio is equal to a ratio of a number ofsub-signal(s) not having been correctly received out of the Ysub-signal(s) to the Y, the first ratio being used for determining theQ.

In one embodiment, the Embodiment 10A corresponds to a schematic diagramof relations among J given first radio signal(s), J given second radiosignal(s) and Q, wherein the Y is equal to the J or the Y is greaterthan the J, the J given first radio signal(s) comprising a total of YHARQ-ACK feedback(s), the Y HARQ-ACK feedback(s) respectivelycorresponding to the Y sub-signal(s) and any of the Y HARQ-ACKfeedback(s) is of a value which is either an ACKnowledgement (ACK) or aNegative ACKnowledgement (NACK), and a first ratio is equal to a numberof NACK(s) comprised by the Y HARQ-ACK feedback(s) to the Y.

In one embodiment, the Y is greater than the J, whether the Ysub-signals are correctly received is used for determining J firststatistical value(s), the J first statistical value(s) respectivelyindicating whether the J given second radio signal(s) is(are) counted asbeing correctly received, and is(are) used for determining the Q.

In one subembodiment, a first reference radio signal is any given secondradio signal of the J given second radio signal(s), sub-signal(s)comprised by the first reference radio signal out of the Y sub-signalsis(are) correctly received, and the first reference radio signal iscounted as being correctly received.

In one subembodiment, a first reference radio signal is any given secondradio signal of the J given second radio signal(s), at least one ofsub-signal(s) comprised by the first reference radio signal out of the Ysub-signals is not correctly received, and the first reference radiosignal is counted as not being correctly received.

In one embodiment, the Y is greater than the J, whether the Ysub-signals are correctly received is used for determining J firststatistical value(s), the J first statistical value(s) respectivelyindicating whether the J given second radio signal(s) is(are) counted asbeing correctly received, a first ratio is equal to a ratio of a numberof given second radio signal(s) counted as not being correctly receivedout of the J given second radio signal(s) respectively indicated by theJ first statistical value(s) to the J, the first ratio being used fordetermining the Q.

In one embodiment, the Embodiment 10B corresponds to a schematic diagramof relations among J given first radio signal(s), J given second radiosignal(s) and Q, wherein the Y is greater than the J, the J given firstradio signal(s) comprising a total of Y HARQ-ACK feedbacks, the YHARQ-ACK feedbacks respectively corresponding to the Y sub-signals andany of the Y HARQ-ACK feedbacks is of a value which is either an ACK ora NACK; the Y HARQ-ACK feedbacks are used for determining J firststatistical value(s) and any of the J first statistical value(s) is of avalue which is either an ACK or a NACK; and a first ratio is equal to anumber of NACK(s) comprised by the J first statistical value(s) to theJ.

Embodiment 11

Embodiment 11 illustrates a schematic diagram of relations among J giventhird radio signal(s), J given fourth radio signal(s) and Q, as shown inFIG. 11 .

In Embodiment 11, the first node in the present disclosure is a UE, theJ given third radio signal(s) respectively comprises(comprise) Jpiece(s) of second information, the J piece(s) of second informationrespectively comprising scheduling information of the J given fourthradio signal(s); the J given fourth radio signal(s) comprises(comprise)Z sub-signal(s), and the J piece(s) of second informationindicates(indicate) whether any of the Z sub-signal(s) comprises newdata, Z being a positive integer no less than the J; whether the Zsub-signal(s) comprises(comprise) new data is used for determining theQ. The J given third radio signal(s) corresponds(correspond) to thereference first-type radio signal in the present disclosure, while the Jgiven fourth radio signal(s) corresponds(correspond) to the referencesecond-type radio signal in the present disclosure, and the Zsub-signal(s) corresponds(correspond) to the V sub-signal(s) in thepresent disclosure, the J being equal to 1 and the Z being equal to theV; or, the J given third radio signals comprise the S fourth-type radiosignal(s) and the reference first-type radio signal in the presentdisclosure, while the J given fourth radio signals comprise the Sfifth-type radio signal(s) and the reference second-type radio signal inthe present disclosure, and the Z sub-signals comprise the V1sub-signal(s) and the V sub-signal(s) in the present disclosure, the Jbeing equal to the S plus 1, and the Z being a sum of the V1 and the V.

In one embodiment, each of the J piece(s) of second information iscarried by a dynamic signaling.

In one embodiment, each of the J piece(s) of second information iscarried by a physical layer signaling.

In one embodiment, each of the J piece(s) of second information iscarried by a dynamic signaling used for Uplink Grant.

In one embodiment, each of the J piece(s) of second information iscarried by a DCI signaling.

In one embodiment, each of the J piece(s) of second information iscarried by an UpLink Grant DCI signaling.

In one embodiment, given second information is any of the J piece(s) ofsecond information, the given second information comprises a firstfield, and the first field comprised in the given second informationindicates whether each sub-signal comprised by a corresponding givenfourth radio signal of the J given fourth radio signal(s) comprises newdata.

In one subembodiment, the first field comprised in the given secondinformation is a New Data Indicator (NDI).

In one subembodiment, the first field comprised in the given secondinformation comprises a positive integer number of bit(s).

In one subembodiment, the first field comprised in the given secondinformation comprises 1 bit.

In one subembodiment, the first field comprised in the given secondinformation comprises 2 bits.

In one embodiment, the Z is equal to the J, the J given third radiosignal(s) respectively indicating whether the Z sub-signal(s) is(are)correctly received.

In one embodiment, the Z is equal to the J, the J piece(s) of secondinformation respectively indicating whether the Z sub-signal(s) is(are)correctly received.

In one embodiment, the Z is greater than the J, at least a given fourthradio signal of the J given fourth radio signal(s) comprises multiplesub-signals.

In one embodiment, the Z is greater than the J, any of the J givenfourth radio signal(s) comprises multiple sub-signals.

In one embodiment, a second reference radio signal comprises Z2sub-signal(s), and the second reference radio signal is any of the Jgiven fourth radio signal(s), the Z2 sub-signal(s) belonging to the Zsub-signal(s).

In one subembodiment, the Z2 is greater than 1, the Z2 sub-signalsoccupying same time-domain resources.

In one subembodiment, the Z2 is greater than 1, at least onemulticarrier symbol being occupied by each of the Z2 sub-signals.

In one subembodiment, the Z2 is greater than 1, the Z2 sub-signalsoccupying same frequency-domain resources.

In one subembodiment, the Z2 is greater than 1, at least one subcarrierbeing occupied by each of the Z2 sub-signals.

In one subembodiment of the above embodiment, the Z2 is a positiveinteger no greater than 2.

In one subembodiment of the above embodiment, the Z2 is equal to 1.

In one subembodiment of the above embodiment, the Z2 is equal to 2.

In one subembodiment of the above embodiment, the Z2 is equal to anumber of codewords of the second reference radio signal.

In one subembodiment of the above embodiment, the second reference radiosignal comprises Z2 codeword(s), the Z2 sub-signal(s) respectivelycorresponding to the Z2 codeword(s).

In one subembodiment of the above embodiment, the Z2 is greater than 1,the Z2 sub-signals respectively occupying different antenna ports orantenna port groups.

In one subembodiment of the above embodiment, one of the J piece(s) ofsecond information corresponding to the second reference radio signalindicates whether each of the Z2 sub-signal(s) comprises(comprise) newdata.

In one embodiment, a first value is equal to a number of sub-signal(s)comprising new data out of the Z sub-signal(s), the first value beingused for determining the Q.

In one embodiment, the Embodiment 11A corresponds to a schematic diagramof relations among J given third radio signal(s), J given fourth radiosignal(s) and the Q, wherein a first value is equal to a number ofsub-signal(s) comprising new data out of the Z sub-signal(s).

In one embodiment, a first value is equal to a ratio of a number ofsub-signal(s) comprising new data out of the Z sub-signal(s) to the Z,the first value being used for determining the Q.

In one embodiment, the Embodiment 11B corresponds to a schematic diagramof relations among J given third radio signal(s), J given fourth radiosignal(s) and the Q, wherein a first value is equal to a ratio of anumber of sub-signal(s) comprising new data out of the Z sub-signal(s)to the Z.

In one embodiment, the Z is greater than the J, whether the Zsub-signals comprise new data is used for determining J secondstatistical value(s), the J second statistical value(s) respectivelyindicating whether the J given fourth radio signal(s) is(are) counted ascomprising new data, and the J second statistical value(s) is(are) usedfor determining the Q.

In one subembodiment, a second reference radio signal is any givenfourth radio signal of the J given fourth radio signal(s), eachsub-signal comprised by the second reference radio signal of the Zsub-signals comprises new data, and the second reference radio signal iscounted as comprising new data.

In one subembodiment, a second reference radio signal is any givenfourth radio signal of the J given fourth radio signal(s), at least oneof sub-signal(s) comprised by the second reference radio signal of the Zsub-signals comprises new data, and the second reference radio signal iscounted as comprising new data.

In one subembodiment, a second reference radio signal is any givenfourth radio signal of the J given fourth radio signal(s), at least oneof sub-signal(s) comprised by the second reference radio signal of the Zsub-signals does not comprise new data, and the second reference radiosignal is counted as comprising no new data.

In one embodiment, a first value is equal to a number of given fourthradio signal(s) comprising new data out of the J given fourth radiosignal(s), and the first value is used for determining the Q.

In one embodiment, the Embodiment 11C corresponds to a schematic diagramof relations among J given third radio signal(s), J given fourth radiosignal(s) and the Q, wherein a value of any of the J second statisticalvalue(s) either comprises new data or comprises no new data, and a firstvalue is equal to a number of second statistical value(s) comprising newdata out of the J second statistical value(s).

In one embodiment, a first value is equal to a ratio of a number ofgiven fourth radio signal(s) comprising new data out of the J givenfourth radio signal(s) to the J, and the first value is used fordetermining the Q.

In one embodiment, the Embodiment 11D corresponds to a schematic diagramof relations among J given third radio signal(s), J given fourth radiosignal(s) and the Q, wherein a value of any of the J second statisticalvalue(s) either comprises new data or comprises no new data, and a firstvalue is equal to a ratio of a number of second statistical value(s)comprising new data out of the J second statistical value(s) to the J.

Embodiment 12

Embodiment 12 illustrates a schematic diagram of a reference first-typeradio signal being used for determining Q, as shown in FIG. 12 .

In Embodiment 12, the reference first-type radio signal is used fordetermining K candidate integer(s), Q1 being one of the K candidateinteger(s); each of Q1 detection value(s) out of the Q detectionvalue(s) is lower than the first threshold in the present disclosure, Kbeing a positive integer, and the Q1 being a positive integer no greaterthan the Q.

In one embodiment, the reference first-type radio signal and the Sfourth-type radio signal(s) in the present disclosure are jointly usedfor determining the K candidate integer(s).

In one embodiment, the first node in the present disclosure randomlyselects a value of the Q1 from the K candidate integers.

In one embodiment, the first node in the present disclosure selects anyof the K candidate integers as a value of the Q1 with equal probability.

In one embodiment, the K candidate integers are 0, 1, 2 . . . , and K−1.

In one embodiment, the K is CWp, which refers to contention window size;the specific definition of the CWp can be found in 3GPP TS36.213,section 15.

In one embodiment, any of the K candidate integer(s) is a non-negativeinteger.

In one embodiment, the K candidate integer(s) comprises(comprise) 0.

In one embodiment, any two of the K candidate integers are unequal.

In one embodiment, the K is a positive integer greater than 1.

Embodiment 13

Embodiment 13 illustrates a schematic diagram of J given fifth radiosignal(s) being used for determining K candidate integer(s), as shown inFIG. 13 .

In Embodiment 13, the K is a positive integer in a first integer set,the first integer set comprising a positive integer number of positiveinteger(s); when a first condition is met, the K is equal to K1, or whena first condition is not met, the K is equal to a smallest positiveinteger in the first integer set; when K0 is not a greatest positiveinteger in the first integer set, the K1 is equal to a smallest positiveinteger greater than the K0 in the first integer set, otherwise the K1is equal to the K0; the K0 is a positive integer in the first integerset. The Q1 in the present disclosure is one of the K candidateinteger(s); and each of Q1 detection value(s) of the Q detectionvalue(s) in the present disclosure is lower than the first threshold inthe present disclosure; the first node in the present disclosure is abase station; the first condition is as follows: a given ratiocorresponding to J given fifth radio signal(s) is no less than a firsttarget value; the J given fifth radio signal(s) corresponds(correspond)to the reference first-type radio signal in the present disclosure, or,the J given fifth radio signals correspond to the reference first-typeradio signal and the S fourth-type radio signal(s) in the presentdisclosure; the given ratio corresponds to the first ratio in thepresent disclosure.

In FIG. 13 , the first integer set is {15, 31, 63}, the K0 being equalto 31 and the K1 being equal to 63. When the given ratio is no less thanthe first target value, the K is equal to the K1; otherwise, the K isequal to 15.

In one embodiment, a priority class for the third-type radio signal inthe present disclosure is used for determining the first integer set.

In one subembodiment of the above embodiment, the priority class for thethird-type radio signal is 3.

In one embodiment, the K0 is CWp in a latest Cat4 LBT process before theQ time sub-pool(s), the CWp referring to contention window size, and thedetailed definition of the CWp can be found in 3GPP TS36.213, section15.

In one embodiment, the first target value is pre-defined.

In one embodiment, the first target value is a non-negative real number.

In one embodiment, the first target value is equal to 80%.

Embodiment 14

Embodiment 14 illustrates another schematic diagram of J given sixthradio signal(s) being used for determining K candidate integer(s), asshown in FIG. 14 .

In Embodiment 14, the K is a positive integer in a first integer set,the first integer set comprising a positive integer number of positiveinteger(s); when a second condition is met, the K is equal to K1, orwhen a second condition is not met, the K is equal to a smallestpositive integer in the first integer set; when K0 is not a greatestpositive integer in the first integer set, the K1 is equal to a smallestpositive integer greater than the K0 in the first integer set, otherwisethe K1 is equal to the K0; the K0 is a positive integer in the firstinteger set. The Q1 in the present disclosure is one of the K candidateinteger(s); and each of Q1 detection value(s) of the Q detectionvalue(s) in the present disclosure is lower than the first threshold inthe present disclosure.

In Embodiment 14, the first node in the present disclosure is a UE; thesecond condition is that a given value to which the J given sixth radiosignal(s) is(are) used to correspond is no greater than a second targetvalue. The J given sixth radio signal(s) corresponds(correspond) to thereference first-type radio signal in the present disclosure, or, J givensixth radio signals correspond to the reference first-type radio signaland the S fourth-type radio signal(s) in the present disclosure; thegiven value corresponds to the first value in the present disclosure.

In FIG. 14 , the first integer set is {15, 31, 63}, the K0 being equalto 63 and the K1 being a greatest positive integer in the first integerset, that is, the K1 is equal to the K0. When the given value is nogreater than the second target value, the K is equal to the K0;otherwise, the K is equal to 15.

In one embodiment, the second target value is pre-defined.

In one embodiment, the second target value is a non-negative realnumber.

In one embodiment, the second target value is a non-negative integer.

In one embodiment, the second target value is equal to 0.

Embodiment 15

Embodiment 15 illustrates a schematic diagram of a given accessdetection being used for determining whether wireless transmission isperformed within given time-domain resources in a given sub-band; asshown in FIG. 15 .

In Embodiment 15, the given access detection comprises performing Xenergy detection(s) respectively in X time sub-pool(s) on the givensub-band, through which X detection value(s) is(are) obtained, X being apositive integer; an end time of the X time sub-pool(s) is no later thana given time, the given time being a start time of given time-domainresources in the given sub-band. The given sub-band corresponds to thefirst sub-band in the present disclosure, and the given time-domainresources in the given sub-band correspond to time-domain resourcesoccupied by the third-type radio signal in the present disclosure, the Xcorresponding to the Q in the present disclosure, and X1 correspondingto the Q1 in the present disclosure; or, the given access detectioncorresponds to any access detection of the T access detections in thepresent disclosure, the given sub-band corresponds to one of the Tsub-bands in the present disclosure corresponding to the given accessdetection, and given time-domain resources in the given sub-bandcorrespond to time-domain resources comprised by one of the Ttime-frequency resource blocks in the present disclosure correspondingto the given sub-band. The process of the given access detection may bedepicted by the flowchart in FIG. 15 .

In FIG. 15 , the base station in the present disclosure is idle in stepS1001, and determines whether there is need to transmit in step S1002;performs energy detection in a defer duration in step S1003; anddetermines in step S1004 whether all slot durations within the deferduration are idle, if yes, move forward to step S1005 to set a firstcounter as X1, X1 being an integer no greater than the X; otherwise, goback to step S1004; the base station determines whether the firstcounter is 0 in step S1006, if yes, move forward to step S1007 toperform wireless transmission in given time-domain resources in thegiven sub-band; otherwise move forward to step S1008 to perform energydetection in an additional slot duration; and determines in step S1009whether the additional slot durations is idle, if yes, move forward tostep S1010 to reduce the first counter by 1 and then go back to stepS1006; otherwise, move forward to step S1011 to perform energy detectionin an additional defer duration; the base station then determines instep S1012 whether all slot durations within the additional deferduration are idle, if yes, move back to step S1010; otherwise, go backto step S1011.

In Embodiment 15, the first counter in FIG. 15 is cleared to 0 ahead ofthe given time, then a result of the given access detection is that achannel is idle, so wireless transmission can be performed within giventime-domain resources in the given sub-band; otherwise, wirelesstransmission in the given time-domain resources in the given sub-band isdropped. The condition for clearing the first counter is that each of X1detection value(s) out of the X detection value(s) respectivelycorresponding to X1 time sub-pool(s) of the X time sub-pool(s) is lowerthan the first reference threshold, a start time of each of the X1 timesub-pool(s) is behind the step S1005 in FIG. 15 .

In one embodiment, the X time sub-pool(s) comprises(comprise) all deferdurations in FIG. 15 .

In one embodiment, the X time sub-pool(s) comprises(comprise) part ofdefer durations in FIG. 15 .

In one embodiment, the X time sub-pool(s) comprises(comprise) all deferdurations and all additional slot durations in FIG. 15 .

In one embodiment, the X time sub-pool(s) comprises(comprise) all deferdurations and part of additional slot durations in FIG. 15 .

In one embodiment, the X time sub-pool(s) comprises(comprise) all deferdurations, all additional slot durations and all additional deferdurations in FIG. 15 .

In one embodiment, the X time sub-pool(s) comprises(comprise) all deferdurations, part of additional slot durations and all additional deferdurations in FIG. 15 .

In one embodiment, the X time sub-pool(s) comprises(comprise) all deferdurations, part of additional slot durations and part of additionaldefer durations in FIG. 15 .

In one embodiment, any of the X time sub-pool(s) lasts either 16 μs or 9μs.

In one embodiment, any slot duration within a given time duration is oneof the X time sub-pool(s); the given time duration is any duration amongall defer durations, all additional slot durations, and all additionaldefer durations comprised in FIG. 15 .

In one embodiment, performing energy detection within a given timeduration refers to performing energy detection in all slot durationswithin the given time duration; the given time duration is any durationamong all defer durations, all additional slot durations, and alladditional defer durations comprised in FIG. 15 .

In one embodiment, a given time duration being determined as idlethrough energy detection means that all slot durations within the givenduration are determined to be idle through energy detection; the giventime duration is any duration among all defer durations, all additionalslot durations, and all additional defer durations comprised in FIG. 15.

In one embodiment, a given slot duration being determined as idlethrough energy detection means that the base station senses power of allradio signals on the given sub-band in a given time unit and thenaverages in time, through which a received power obtained is lower thanthe first reference threshold; the given time unit is a consecutiveduration in the given slot duration.

In one subembodiment of the above embodiment, the given time unit lastsno shorter than 4 μs.

In one embodiment, a given slot duration being determined as idlethrough energy detection means that the base station senses energy ofall radio signals on the given sub-band in a given time unit and thenaverages in time, through which a received energy obtained is lower thanthe first reference threshold; the given time unit is a consecutiveduration in the given slot duration.

In one subembodiment of the above embodiment, the given time unit lastsno shorter than 4 μs.

In one embodiment, performing energy detection within a given timeduration refers to performing energy detection in time sub-pool(s)within the given time duration; the given time duration is any durationamong all defer durations, all additional slot durations, and alladditional defer durations comprised in FIG. 15 , and each of the timesub-pool(s) belongs to the X time sub-pool(s).

In one embodiment, a given time duration being determined as idlethrough energy detection means that each of detection value(s) obtainedthrough energy detection on time sub-pool(s) comprised by the given timeduration is lower than the first reference threshold; the given timeduration is any duration among all defer durations, all additional slotdurations, and all additional defer durations comprised in FIG. 15 ,each of the time sub-pool(s) belongs to the X time sub-pool(s) and eachof the detection value(s) belongs to the X detection value(s).

In one embodiment, a defer duration lasts as long as (16+Y1*9) μs, Y1being a positive integer.

In one subembodiment, a defer duration comprises Y1+1 time sub-pools ofthe X time sub-pools.

In one reference embodiment of the above subembodiment, a first timesub-pool of the Y1+1 time sub-pools lasts 16 μs, while each of the otherY1 time sub-pool(s) lasts 9 μs.

In one subembodiment, the given priority class is used for determiningthe Y1.

In one reference embodiment of the above subembodiment, the givenpriority class is Channel Access Priority Class, for the definition ofthe Channel Access Priority Class, refer to 3GPP TS36.213, section 15.

In one subembodiment of the above embodiment, the Y1 belongs to a set of1, 2, 3, and 7.

In one embodiment, a defer duration comprises multiple slot durations.

In one subembodiment, a first slot duration and a second slot durationof the multiple slot durations are non-consecutive.

In one subembodiment, a first slot duration and a second slot durationof the multiple slot durations are spaced by a time interval of 7 ms.

In one embodiment, an additional defer duration lasts as long as(16+Y2*9) μs, Y2 being a positive integer.

In one subembodiment, an additional defer duration comprises Y2+1 timesub-pools of the X time sub-pools.

In one reference embodiment of the above subembodiment, a first timesub-pool of the Y2+1 time sub-pools lasts 16 μs, while each of the otherY2 time sub-pool(s) lasts 9 μs.

In one subembodiment, the given priority class is used for determiningthe Y2.

In one subembodiment of the above embodiment, the Y2 belongs to a set of1, 2, 3, and 7.

In one embodiment, a defer duration lasts as long as an additional deferduration.

In one embodiment, the Y1 is equal to the Y2.

In one embodiment, an additional defer duration comprises multiple slotdurations.

In one subembodiment, a first slot duration and a second slot durationof the multiple slot durations are non-consecutive.

In one subembodiment, a first slot duration and a second slot durationof the multiple slot durations are spaced by a time interval of 7 ms.

In one embodiment, a slot duration lasts 9 μs.

In one embodiment, a slot duration is one of the X time sub-pool(s).

In one embodiment, an additional slot duration lasts 9 μs.

In one embodiment, an additional slot comprises one of the X timesub-pool(s).

In one embodiment, the X energy detection(s) is(are) used fordetermining whether the given sub-band is idle.

In one embodiment, the X energy detection(s) is(are) used fordetermining whether the given sub-band can be used by the base stationfor transmitting a radio signal.

In one embodiment, the X detection value(s) is(are) measured by dBm.

In one embodiment, the X detection value(s) is(are) measured by mW.

In one embodiment, the X detection value(s) is(are) measured by Joule(J).

In one embodiment, the X1 is less than the X.

In one embodiment, the X is greater than 1.

In one embodiment, the first reference threshold is measured by dBm.

In one embodiment, the first reference threshold is measured by mW.

In one embodiment, the first reference threshold is measured by J.

In one embodiment, the first reference threshold is equal to or lessthan −72 dBm.

In one embodiment, the first reference threshold is any value equal toor less than a first given value.

In one subembodiment of the above embodiment, the first given value ispre-defined.

In one subembodiment of the above embodiment, the first given value isconfigured by a higher-layer signaling.

In one embodiment, the first reference threshold is liberally selectedby the base station given that the first reference threshold is equal toor less than a first given value.

In one subembodiment of the above embodiment, the first given value ispre-defined.

In one subembodiment of the above embodiment, the first given value isconfigured by a higher-layer signaling.

In one embodiment, the X energy detection(s) is(are) energy detection(s)in a process of Cat 4 LBT, the X1 is CWp in the Cat 4 LBT process, theCWp referring to contention window size, and the detailed definition ofthe CWp can be found in 3GPP TS36.213, section 15.

In one embodiment, at least one detection value of the X detectionvalues not belonging to the X1 detection value(s) is lower than thefirst reference threshold.

In one embodiment, at least one detection value of the X detectionvalues not belonging to the X1 detection value(s) is no lower than thefirst reference threshold.

In one embodiment, any two time sub-pools of the X1 time sub-pools areof equal duration.

In one embodiment, at least two time sub-pools of the X1 time sub-poolsare of unequal durations.

In one embodiment, the X1 time sub-pool(s) comprises(comprise) a latesttime sub-pool of the X time sub-pools.

In one embodiment, the X1 time sub-pool(s) comprises(comprise) only slotduration(s) in an eCCA.

In one embodiment, the X time sub-pools comprise the X1 time sub-pool(s)and X2 time sub-pool(s), any of the X2 time sub-pool(s) not belonging tothe X1 time sub-pool(s); X2 is a positive integer no greater than the Xminus the X1.

In one subembodiment of the above embodiment, the X2 time sub-pool(s)comprises(comprise) slot duration(s) in an initial CCA.

In one subembodiment of the above embodiment, positions of the X2 timesub-pools among the X time sub-pools are consecutive.

In one subembodiment of the above embodiment, at least one of the X2time sub-pool(s) corresponds to a detection value lower than the firstreference threshold.

In one subembodiment of the above embodiment, at least one of the X2time sub-pool(s) corresponds to a detection value not lower than thefirst reference threshold.

In one subembodiment of the above embodiment, the X2 time sub-pool(s)comprises(comprise) all slot durations within all defer durations.

In one subembodiment of the above embodiment, the X2 time sub-pool(s)comprises(comprise) all slot durations within at least one additionaldefer duration.

In one subembodiment of the above embodiment, the X2 time sub-pool(s)comprises(comprise) at least one additional slot duration.

In one subembodiment of the above embodiment, the X2 time sub-pool(s)comprises(comprise) all slot durations within all additional slotdurations and all defer durations in FIG. 15 determined to be non-idlethrough energy detection.

In one embodiment, the X1 time sub-pool(s) respectively belongs(belong)to X1 sub-pool set(s), any of the X1 sub-pool set(s) comprises apositive integer number of time sub-pool(s) of the X time sub-pool(s);any time sub-pool out of the X1 sub-pool set(s) corresponds to adetection value lower than the first reference threshold.

In one subembodiment of the above embodiment, at least one sub-pool setof the X1 sub-pool set(s) comprises 1 time sub-pool.

In one subembodiment of the above embodiment, at least one sub-pool setof the X1 sub-pool set(s) comprises more than 1 time sub-pool.

In one subembodiment of the above embodiment, at least two sub-pool setsof the X1 sub-pool sets comprise unequal numbers of time sub-pools.

In one subembodiment of the above embodiment, none of the X timesub-pool(s) belongs to two of the X1 sub-pool sets simultaneously.

In one subembodiment of the above embodiment, each time sub-poolcomprised in any of the X1 sub-pool set(s) belongs to a same additionaldefer duration or additional slot duration determined as idle throughenergy detection.

In one subembodiment of the above embodiment, at least one of timesub-pool(s) of the X time sub-pools not belonging to the X1 sub-poolset(s) corresponds to a detection value lower than the first referencethreshold.

In one subembodiment of the above embodiment, at least one of timesub-pool(s) of the X time sub-pools not belonging to the X1 sub-poolset(s) corresponds to a detection value no lower than the firstreference threshold.

Embodiment 16

Embodiment 16 illustrates another schematic diagram of a given accessdetection being used for determining whether wireless transmission isperformed within given time-domain resources in a given sub-band; asshown in FIG. 16 .

In Embodiment 16, the given access detection comprises performing Xenergy detection(s) respectively in X time sub-pool(s) on the givensub-band, through which X detection value(s) is(are) obtained, X being apositive integer; an end time of the X time sub-pool(s) is no later thana given time, the given time being a start time of given time-domainresources in the given sub-band. The given sub-band corresponds to thefirst sub-band in the present disclosure, and the given time-domainresources in the given sub-band correspond to time-domain resourcesoccupied by the third-type radio signal in the present disclosure, the Xcorresponding to the Q in the present disclosure, and X1 correspondingto the Q1 in the present disclosure; or, the given access detectioncorresponds to any access detection of the T access detections in thepresent disclosure, the given sub-band corresponds to one of the Tsub-bands in the present disclosure corresponding to the given accessdetection, and given time-domain resources in the given sub-bandcorrespond to time-domain resources comprised by one of the Ttime-frequency resource blocks in the present disclosure correspondingto the given sub-band. The process of the given access detection may bedepicted by the flowchart in FIG. 16 .

In Embodiment 16, the UE in the present disclosure is idle in stepS2201, and determines whether there is need to transmit in step S2202;performs energy detection in a sensing interval in step S2203; anddetermines in step S2204 whether all slot durations within the sensinginterval are idle, if yes, move forward to step S2205 to performwireless transmission in given time-domain resources in the givensub-band; otherwise, go back to step S2203.

In Embodiment 16, a first given duration comprises a positive integernumber of time sub-pool(s) of the X time sub-pool(s), and the firstgiven duration is any duration out of all sensing intervals comprised inFIG. 16 . A second given duration comprises a time sub-pool of the X1time sub-pool(s), and the second given duration is a sensing interval inFIG. 16 determined to be idle through energy detection.

In one embodiment, the detailed definition of the sensing interval canbe found in 3GPP TS36.213, section 15.2.

In one embodiment, the X1 is equal to 2.

In one embodiment, the X1 is equal to the X.

In one embodiment, a sensing interval lasts 25 μs.

In one embodiment, a sensing interval comprises 2 slot durations, andthe 2 slot durations are non-consecutive in time domain.

In one subembodiment of the above embodiment, the 2 slot durations arespaced by a time interval of 7 μs.

In one embodiment, the X time sub-pool(s) comprises(comprise) listeningtime in Category 2 LBT.

In one embodiment, the X time sub-pool(s) comprises(comprise) slotscomprised in a sensing interval in Type 2 UL channel access procedure,for the detailed definition of the sensing interval, refer to 3GPPTS36.213, section 15.2.

In one subembodiment of the above embodiment, the sensing interval lasts25 μs.

In one embodiment, the X time sub-pool(s) comprises(comprise) Tf and Tslcomprised in a sensing interval in Type 2 UL channel access procedure,for the detailed definition of the Tf and the Tsl, refer to 3GPPTS36.213, section 15.2.

In one subembodiment, the Tf lasts 16 μs.

In one subembodiment, the Tsl lasts 9 μs.

In one embodiment, a first time sub-pool of the X1 time sub-pools lasts16 μs, and a second time sub-pool of the X1 time sub-pools lasts 9 μs,the X1 being 2.

In one embodiment, each of the X1 time sub-pools lasts 9 μs; a timeinterval between a first time sub-pool and a second time sub-pool of theX1 time sub-pools is 7 μs, the X1 being 2.

Embodiment 17

Embodiment 17 illustrates a structure block diagram of a processingdevice in a first node, as shown in FIG. 17 . In FIG. 17 , a firstnode's processing device 1700 comprises a first transceiver 1701, afirst receiver 1702 and a first transmitter 1703.

In one embodiment, the first node is a UE, and the first transceiver1701 comprises the transmitter/receiver 456, the transmitting processor455, the receiving processor 452 and the controller/processor 490 inEmbodiment 4.

In one embodiment, the first node is a UE, and the first transceiver1701 comprises at least the first three of the transmitter/receiver 456,the transmitting processor 455, the receiving processor 452 and thecontroller/processor 490 in Embodiment 4.

In one embodiment, the first node is a UE, and the first receiver 1702comprises the receiver 456, the receiving processor 452 and thecontroller/processor 490 in Embodiment 4.

In one embodiment, the first node is a UE, and the first receiver 1702comprises at least the first two of the receiver 456, the receivingprocessor 452 and the controller/processor 490 in Embodiment 4.

In one embodiment, the first node is a UE, and the first transmitter1703 comprises the transmitter 456, the transmitting processor 455 andthe controller/processor 490 in Embodiment 4.

In one embodiment, the first node is a UE, and the first transmitter1703 comprises at least the first two of the transmitter 456, thetransmitting processor 455 and the controller/processor 490 inEmbodiment 4.

In one embodiment, the first node is a base station, and the firsttransceiver 1701 comprises the transmitter/receiver 416, thetransmitting processor 415, the receiving processor 412 and thecontroller/processor 440 in Embodiment 4.

In one embodiment, the first node is a base station, and the firsttransceiver 1701 comprises at least the first three of thetransmitter/receiver 416, the transmitting processor 415, the receivingprocessor 412 and the controller/processor 440 in Embodiment 4.

In one embodiment, the first node is a base station, and the firstreceiver 1702 comprises the receiver 416, the receiving processor 412and the controller/processor 440 in Embodiment 4.

In one embodiment, the first node is a base station, and the firstreceiver 1702 comprises at least the first two of the receiver 416, thereceiving processor 412 and the controller/processor 440 in Embodiment4.

In one embodiment, the first node is a base station, and the firsttransmitter 1703 comprises the transmitter 416, the transmittingprocessor 415 and the controller/processor 440 in Embodiment 4.

In one embodiment, the first node is a base station, and the firsttransmitter 1703 comprises at least the first two of the transmitter416, the transmitting processor 415 and the controller/processor 440 inEmbodiment 4.

The first transceiver 1701 receives T first-type radio signals, T beinga positive integer greater than 1; and performs T access detectionsrespectively on T sub-bands, and transmits T second-type radio signalsrespectively in T time-frequency resource blocks.

The first receiver 1702 performs Q energy detection(s) respectively in Qtime sub-pool(s) on a first sub-band, through which Q detection value(s)is(are) obtained, Q being a positive integer.

In Embodiment 17, the T sub-bands comprise at least one same frequencypoint, or the T sub-bands belong to a same carrier; at least onesub-band of the T sub-bands is different from the first sub-band; the Tfirst-type radio signals are respectively associated with the Tsecond-type radio signals; a reference first-type radio signal is one ofthe T first-type radio signals, the Q is related only to the referencefirst-type radio signal of the T first-type radio signals; the T accessdetections are respectively used for determining transmissions of the Tsecond-type radio signals; a reference sub-band is one of the Tsub-bands corresponding to the reference first-type radio signal, and areference time-frequency resource block is one of the T time-frequencyresource blocks corresponding to the reference first-type radio signal;selection of the reference time-frequency resource block is related toat least one of the first sub-band or the reference sub-band; the firstnode is a base station, or the first node is a UE.

In one embodiment, a bandwidth of the reference sub-band is equal to abandwidth of a carrier to which the reference sub-band belongs.

In one embodiment, each of t time-frequency resource block(s) out of theT time-frequency resource blocks comprises the first sub-band, t being apositive integer no greater than the T; the reference time-frequencyresource block is one of the t time-frequency resource block(s).

In one embodiment, each of t time-frequency resource block(s) out of theT time-frequency resource blocks comprises the first sub-band, t being apositive integer no greater than the T; frequency-domain resourcesrespectively comprised by t1 time-frequency resource block(s) of the ttime-frequency resource block(s) are the same as frequency-domainresources comprised by the first sub-band, wherein t1 is a positiveinteger no greater than the t, and the reference time-frequency resourceblock is one of the t1 time-frequency resource block(s); or,frequency-domain resources comprised by any of the t time-frequencyresource block(s) are not completely the same as frequency-domainresources comprised by the first sub-band, and the referencetime-frequency resource block is one of the t time-frequency resourceblock(s).

In one embodiment, the first node is a base station, and the Tfirst-type radio signals respectively indicate whether the T second-typeradio signals are correctly received; a reference second-type radiosignal is one of the T second-type radio signals associated with thereference first-type radio signal, and the reference second-type radiosignal comprises W sub-signal(s), W being a positive integer; whetherthe W sub-signal(s) is(are) correctly received is used for determiningthe Q.

In one embodiment, the first node is a UE, and the T first-type radiosignals respectively comprise scheduling information of the Tsecond-type radio signals; a reference second-type radio signal is oneof the T second-type radio signals associated with the referencefirst-type radio signal, and the reference second-type radio signalcomprises V sub-signal(s), V being a positive integer; the referencefirst-type radio signal is used for respectively determining whether theV sub-signal(s) comprises(comprise) new data; whether the Vsub-signal(s) comprises(comprise) new data is used for determining theQ.

In one embodiment, the reference first-type radio signal is used fordetermining K candidate integer(s), Q1 being one of the K candidateinteger(s); each of Q1 detection value(s) out of the Q detectionvalue(s) is lower than the first threshold in the present disclosure, Kbeing a positive integer, and the Q1 being a positive integer no greaterthan the Q.

In one embodiment, the processing device in the first node alsocomprises:

A first transmitter 1703, which transmits a third-type radio signal inthe first sub-band;

herein, a start time of time-domain resources occupied by the third-typeradio signal is no earlier than an end time of the Q time sub-pool(s).

In one embodiment, the first transceiver 1701 also operates firstinformation; herein, the first information comprises schedulinginformation of the third-type radio signal; the operating is receiving,and the first node is a UE; or the operating is transmitting, and thefirst node is a base station.

The ordinary skill in the art may understand that all or part of stepsin the above method may be implemented by instructing related hardwarethrough a program. The program may be stored in a computer readablestorage medium, for example Read-Only-Memory (ROM), hard disk or compactdisc, etc. Optionally, all or part of steps in the above embodimentsalso may be implemented by one or more integrated circuits.Correspondingly, each module unit in the above embodiment may berealized in the form of hardware, or in the form of software functionmodules. The present disclosure is not limited to any combination ofhardware and software in specific forms. The UE or terminal includes butis not limited to unmanned aerial vehicles, communication modules onunmanned aerial vehicles, telecontrolled aircrafts, aircrafts,diminutive airplanes, mobile phones, tablet computers, notebooks,vehicle-mounted communication equipment, wireless sensor, network cards,terminals for Internet of Things (IOT), RFID terminals, NB-IOTterminals, Machine Type Communication (MTC) terminals, enhanced MTC(eMTC) terminals, data cards, low-cost mobile phones, low-cost tabletcomputers, etc. The base station or system equipment in the presentdisclosure includes but is not limited to macro-cellular base stations,micro-cellular base stations, home base stations, relay base station,gNB (NR node B), Transmitter Receiver Point (TRP), and other radiocommunication equipment.

The above are merely the preferred embodiments of the present disclosureand are not intended to limit the scope of protection of the presentdisclosure. Any modification, equivalent substitute and improvement madewithin the spirit and principle of the present disclosure are intendedto be included within the scope of protection of the present disclosure.

What is claimed is:
 1. A method in a first node for wirelesscommunications, comprising: receiving T first-type radio signals, anyfirst-type radio signal of the T first-type radio signals comprisescontrol information, T being a positive integer greater than 1; andperforming T access detections respectively on T sub-bands, andtransmitting T second-type radio signals respectively in Ttime-frequency resource blocks, wherein the T access detections arerespectively used for determining whether the T sub-bands are idle, theT second-type radio signals are respectively transmitted in the Tsub-bands, and any of the T time-frequency resource blocks is earlierthan the Q time sub-pool(s) in time domain; operating first information;performing Q energy detection(s) respectively in Q time sub-pool(s) on afirst sub-band, through which Q detection value(s) is(are) obtained, theQ energy detection(s) is(are) used for determining whether the firstsub-band is idle, Q being a positive integer; and transmitting athird-type radio signal in the first sub-band; wherein the T sub-bandscomprise at least one same frequency point, or the T sub-bands belong toa same carrier; at least one sub-band of the T sub-bands is differentfrom the first sub-band; the T sub-bands and the first sub-band belongto a same carrier, and at least one of the T sub-bands is non-orthogonal(that is, partially or entirely overlapping) with the first sub-band;the T first-type radio signals are respectively associated with the Tsecond-type radio signals; a reference first-type radio signal is one ofthe T first-type radio signals, the Q is related only to the referencefirst-type radio signal of the T first-type radio signals; the T accessdetections are respectively used for determining transmissions of the Tsecond-type radio signals; a reference sub-band is one of the Tsub-bands corresponding to the reference first-type radio signal, and areference time-frequency resource block is one of the T time-frequencyresource blocks corresponding to the reference first-type radio signal;the reference time-frequency resource block being one of the Ttime-frequency resource blocks that corresponds to the referencefirst-type radio signal means that a reference second-type radio signalis one of the T second-type radio signals associated with the referencefirst-type radio signal, and the reference time-frequency resource blockis a time-frequency resource block used for transmitting the referencesecond-type radio signal out of the T time-frequency resource blocks;selection of the reference time-frequency resource block is related toat least one of the first sub-band or the reference sub-band; the firstinformation comprises scheduling information of the third-type radiosignal; a start time of time-domain resources occupied by the third-typeradio signal is no earlier than an end time of the Q time sub-pool(s);the operating is transmitting, the first node is a base station, or, theoperating is receiving, the first node is a User Equipment (UE).
 2. Themethod according to claim 1, wherein the first node is a base station,any of the T first-type radio signals comprises UCI, the T second-typeradio signals are respectively transmitted on T PDSCHs, and the Q energydetection(s) is(are) respectively energy detection(s) in a downlinkaccess detection;
 3. The method according to claim 1, wherein the firstnode is a UE, any of the T first-type radio signals comprises DCI, the Tsecond-type radio signals are respectively transmitted on T PUSCHs, andthe Q energy detection(s) is(are) energy detection(s) in an uplinkaccess detection.
 4. The method according to claim 1, wherein abandwidth of the reference sub-band is equal to a bandwidth of a carrierto which the reference sub-band belongs.
 5. The method according toclaim 1, wherein each of t time-frequency resource block(s) out of the Ttime-frequency resource blocks comprises the first sub-band in frequencydomain, t being a positive integer no greater than the T, the referencetime-frequency resource block is one of the t time-frequency resourceblock(s).
 6. The method according to claim 5, wherein the t is greaterthan 1, and the reference time-frequency resource block being one of thet time-frequency resource blocks that is closest to a start time of theQ time sub-pool(s) in time domain.
 7. The method according to claim 1,wherein the T first-type radio signals respectively indicate whether theT second-type radio signals are correctly received; a referencesecond-type radio signal is one of the T second-type radio signalsassociated with the reference first-type radio signal, and the referencesecond-type radio signal comprises W sub-signal(s), W being a positiveinteger; whether the W sub-signal(s) is(are) correctly received is usedfor determining the Q.
 8. The method according to claim 7, wherein Sfourth-type radio signal(s) indicates(indicate) whether S fifth-typeradio signal(s) is(are) correctly received respectively, time-frequencyresources respectively occupied by the S fifth-type radio signals belongto the reference time-frequency resource block, and the S fifth-typeradio signal(s) comprises(comprise) W1 sub-signal(s), W1 being apositive integer; whether the W sub-signal(s) and the W1 sub-signal(s)are correctly received is used for determining the Q.
 9. The methodaccording to claim 1, wherein each of Q1 detection value(s) out of the Qdetection value(s) is lower than a first threshold, K being a positiveinteger, and the Q1 being a positive integer no greater than the Q; thereference first-type radio signal is used for determining K candidateinteger(s), Q1 being one of the K candidate integer(s).
 10. The methodaccording to claim 9, wherein the K candidate integers are 0, 1, 2 . . ., and K−1, and the first node randomly selects a value of the Q1 fromthe K candidate integers.
 11. A device in a first node for wirelesscommunications, comprising: a first transceiver, receiving T first-typeradio signals, any first-type radio signal of the T first-type radiosignals comprises control information, T being a positive integergreater than 1; performing T access detections respectively on Tsub-bands, and transmitting T second-type radio signals respectively inT time-frequency resource blocks, wherein the T access detections arerespectively used for determining whether the T sub-bands are idle, theT second-type radio signals are respectively transmitted in the Tsub-bands, and any of the T time-frequency resource blocks is earlierthan the Q time sub-pool(s) in time domain; and operating firstinformation; a first receiver, performing Q energy detection(s)respectively in Q time sub-pool(s) on a first sub-band, through which Qdetection value(s) is(are) obtained, the Q energy detection(s) is(are)used for determining whether the first sub-band is idle, Q being apositive integer; and a first transmitter, transmitting a third-typeradio signal in the first sub-band; wherein the T sub-bands comprise atleast one same frequency point, or the T sub-bands belong to a samecarrier; at least one sub-band of the T sub-bands is different from thefirst sub-band; the T sub-bands and the first sub-band belong to a samecarrier, and at least one of the T sub-bands is non-orthogonal (that is,partially or entirely overlapping) with the first sub-band; the Tfirst-type radio signals are respectively associated with the Tsecond-type radio signals; a reference first-type radio signal is one ofthe T first-type radio signals, the Q is related only to the referencefirst-type radio signal of the T first-type radio signals; the T accessdetections are respectively used for determining transmissions of the Tsecond-type radio signals; a reference sub-band is one of the Tsub-bands corresponding to the reference first-type radio signal, and areference time-frequency resource block is one of the T time-frequencyresource blocks corresponding to the reference first-type radio signal;the reference time-frequency resource block being one of the Ttime-frequency resource blocks that corresponds to the referencefirst-type radio signal means that a reference second-type radio signalis one of the T second-type radio signals associated with the referencefirst-type radio signal, and the reference time-frequency resource blockis a time-frequency resource block used for transmitting the referencesecond-type radio signal out of the T time-frequency resource blocks;selection of the reference time-frequency resource block is related toat least one of the first sub-band or the reference sub-band; the firstinformation comprises scheduling information of the third-type radiosignal; a start time of time-domain resources occupied by the third-typeradio signal is no earlier than an end time of the Q time sub-pool(s);the operating is transmitting, the first node is a base station, or, theoperating is receiving, the first node is a User Equipment (UE).
 12. Thedevice in the first node according to claim 11, wherein the first nodeis a base station, any of the T first-type radio signals comprises UCI,the T second-type radio signals are respectively transmitted on TPDSCHs, and the Q energy detection(s) is(are) respectively energydetection(s) in a downlink access detection;
 13. The device in the firstnode according to claim 11, wherein the first node is a UE, any of the Tfirst-type radio signals comprises DCI, the T second-type radio signalsare respectively transmitted on T PUSCHs, and the Q energy detection(s)is(are) energy detection(s) in an uplink access detection.
 14. Thedevice in the first node according to claim 11, wherein a bandwidth ofthe reference sub-band is equal to a bandwidth of a carrier to which thereference sub-band belongs.
 15. The device in the first node accordingto claim 11, wherein each oft time-frequency resource block(s) out ofthe T time-frequency resource blocks comprises the first sub-band infrequency domain, t being a positive integer no greater than the T, thereference time-frequency resource block is one of the t time-frequencyresource block(s).
 16. The device in the first node according to claim15, wherein the t is greater than 1, and the reference time-frequencyresource block being one of the t time-frequency resource blocks that isclosest to a start time of the Q time sub-pool(s) in time domain. 17.The device in the first node according to claim 11, wherein the Tfirst-type radio signals respectively indicate whether the T second-typeradio signals are correctly received; a reference second-type radiosignal is one of the T second-type radio signals associated with thereference first-type radio signal, and the reference second-type radiosignal comprises W sub-signal(s), W being a positive integer; whetherthe W sub-signal(s) is(are) correctly received is used for determiningthe Q.
 18. The device in the first node according to claim 17, wherein Sfourth-type radio signal(s) indicates(indicate) whether S fifth-typeradio signal(s) is(are) correctly received respectively, time-frequencyresources respectively occupied by the S fifth-type radio signals belongto the reference time-frequency resource block, and the S fifth-typeradio signal(s) comprises(comprise) W1 sub-signal(s), W1 being apositive integer; whether the W sub-signal(s) and the W1 sub-signal(s)are correctly received is used for determining the Q.
 19. The device inthe first node according to claim 11, wherein each of Q1 detectionvalue(s) out of the Q detection value(s) is lower than a firstthreshold, K being a positive integer, and the Q1 being a positiveinteger no greater than the Q; the reference first-type radio signal isused for determining K candidate integer(s), Q1 being one of the Kcandidate integer(s).
 20. The device in the first node according toclaim 19, wherein the K candidate integers are 0, 1, 2 . . . , and K−1,and the first node randomly selects a value of the Q1 from the Kcandidate integers.